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64057025 = 5267167229
BaseRepresentation
bin1111010001011…
…0111011000001
311110112102201102
43310112323001
5112344311100
610204544145
71405322114
oct364267301
9143472642
1064057025
1133181a9a
1219552055
131036a786
14871657b
155954cd5
hex3d16ec1

64057025 has 24 divisors (see below), whose sum is σ = 81453120. Its totient is φ = 49959360.

The previous prime is 64057009. The next prime is 64057031. The reversal of 64057025 is 52075046.

It is not a de Polignac number, because 64057025 - 24 = 64057009 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 279611 + ... + 279839.

It is an arithmetic number, because the mean of its divisors is an integer number (3393880).

Almost surely, 264057025 is an apocalyptic number.

It is an amenable number.

64057025 is a deficient number, since it is larger than the sum of its proper divisors (17396095).

64057025 is a wasteful number, since it uses less digits than its factorization.

64057025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 64057025 is about 8003.5632689447. The cubic root of 64057025 is about 400.1187668160.

The spelling of 64057025 in words is "sixty-four million, fifty-seven thousand, twenty-five".

Divisors: 1 5 25 67 167 229 335 835 1145 1675 4175 5725 11189 15343 38243 55945 76715 191215 279725 383575 956075 2562281 12811405 64057025