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4490561925 = 325219958053
BaseRepresentation
bin1000010111010100…
…01000100110000101
3102120221210011220100
410023222020212011
533144040440200
62021332154313
7216165101163
oct41352104605
912527704810
104490561925
1119a4894703
12a53a68999
13567450945
14308570233
151b4376d00
hex10ba88985

4490561925 has 18 divisors (see below), whose sum is σ = 8043095762. Its totient is φ = 2394966240.

The previous prime is 4490561923. The next prime is 4490561981. The reversal of 4490561925 is 5291650944.

4490561925 is a `hidden beast` number, since 4 + 4 + 9 + 0 + 5 + 619 + 25 = 666.

4490561925 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 783944001 + 3706617924 = 27999^2 + 60882^2 .

It is not a de Polignac number, because 4490561925 - 21 = 4490561923 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4490561923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 9978802 + ... + 9979251.

Almost surely, 24490561925 is an apocalyptic number.

4490561925 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4490561925 is a deficient number, since it is larger than the sum of its proper divisors (3552533837).

4490561925 is a wasteful number, since it uses less digits than its factorization.

4490561925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19958069 (or 19958061 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The square root of 4490561925 is about 67011.6551429675. The cubic root of 4490561925 is about 1649.8086003881.

The spelling of 4490561925 in words is "four billion, four hundred ninety million, five hundred sixty-one thousand, nine hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 75 225 19958053 59874159 99790265 179622477 299370795 498951325 898112385 1496853975 4490561925