65257152 has 56 divisors (see below), whose sum is σ = 182825136. Its totient is φ = 20471808.

The previous prime is 65257147. The next prime is 65257223. The reversal of 65257152 is 25175256.

It is a super-2 number, since 2×65257152² = 8516991774302208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6733 + ... + 13260.

Almost surely, 2^65257152 is an apocalyptic number.

It is an amenable number.

65257152 is an abundant number, since it is smaller than the sum of its proper divisors (117567984).

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

65257152 is a wasteful number, since it uses less digits than its factorization.

65257152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20025 (or 20015 counting only the distinct ones).

The product of its digits is 21000, while the sum is 33.

The square root of 65257152 is about 8078.1898962577. The cubic root of 65257152 is about 402.6021026160.

The spelling of 65257152 in words is "sixty-five million, two hundred fifty-seven thousand, one hundred fifty-two".