65257672 has 32 divisors (see below), whose sum is σ = 124200000. Its totient is φ = 32142528.

The previous prime is 65257657. The next prime is 65257721. The reversal of 65257672 is 27675256.

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, 284854 + ... + 285082.

It is an arithmetic number, because the mean of its divisors is an integer number (3881250).

Almost surely, 2^65257672 is an apocalyptic number.

It is an amenable number.

65257672 is a deficient number, since it is larger than the sum of its proper divisors (58942328).

65257672 is a wasteful number, since it uses less digits than its factorization.

65257672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613 (or 609 counting only the distinct ones).

The product of its digits is 176400, while the sum is 40.

The square root of 65257672 is about 8078.2220816217. Note that the first 3 decimals coincide. The cubic root of 65257672 is about 402.6031719882.

The spelling of 65257672 in words is "sixty-five million, two hundred fifty-seven thousand, six hundred seventy-two".