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561925053 = 3320812039
BaseRepresentation
bin100001011111100…
…100101110111101
31110011100202021000
4201133210232331
52122323100203
6131432000513
716632166314
oct4137445675
91404322230
10561925053
11269212678
12138230139
138c557341
14548b527b
15344eb4a3
hex217e4bbd

561925053 has 8 divisors (see below), whose sum is σ = 832481600. Its totient is φ = 374616684.

The previous prime is 561925051. The next prime is 561925073. The reversal of 561925053 is 350529165.

561925053 is a `hidden beast` number, since 5 + 61 + 92 + 505 + 3 = 666.

It is not a de Polignac number, because 561925053 - 21 = 561925051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 561924999 and 561925017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561925051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10405993 + ... + 10406046.

It is an arithmetic number, because the mean of its divisors is an integer number (104060200).

Almost surely, 2561925053 is an apocalyptic number.

It is an amenable number.

561925053 is a deficient number, since it is larger than the sum of its proper divisors (270556547).

561925053 is a wasteful number, since it uses less digits than its factorization.

561925053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20812048 (or 20812042 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 36.

The square root of 561925053 is about 23704.9584053632. The cubic root of 561925053 is about 825.2004669870.

The spelling of 561925053 in words is "five hundred sixty-one million, nine hundred twenty-five thousand, fifty-three".

Divisors: 1 3 9 27 20812039 62436117 187308351 561925053