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544545225 = 325271931587
BaseRepresentation
bin100000011101010…
…001100111001001
31101221122202121200
4200131101213021
52103400421400
6130011254413
716331362260
oct4035214711
91357582550
10544545225
1125a421984
1213244a409
1388a80713
145246d5d7
1532c16b00
hex207519c9

544545225 has 144 divisors (see below), whose sum is σ = 1213255680. Its totient is φ = 227836800.

The previous prime is 544545203. The next prime is 544545229. The reversal of 544545225 is 522545445.

It is not a de Polignac number, because 544545225 - 27 = 544545097 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 544545225.

It is not an unprimeable number, because it can be changed into a prime (544545229) 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 143 ways as a sum of consecutive naturals, for example, 927382 + ... + 927968.

Almost surely, 2544545225 is an apocalyptic number.

It is an amenable number.

544545225 is an abundant number, since it is smaller than the sum of its proper divisors (668710455).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

544545225 is a wasteful number, since it uses less digits than its factorization.

544545225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660 (or 652 counting only the distinct ones).

The product of its digits is 160000, while the sum is 36.

The square root of 544545225 is about 23335.4928167373. The cubic root of 544545225 is about 816.6036524104.

The spelling of 544545225 in words is "five hundred forty-four million, five hundred forty-five thousand, two hundred twenty-five".