65257972 has 24 divisors (see below), whose sum is σ = 123815552. Its totient is φ = 29916000.

The previous prime is 65257967. The next prime is 65257981. The reversal of 65257972 is 27975256.

It is a congruent number.

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, 3697 + ... + 12007.

Almost surely, 2^65257972 is an apocalyptic number.

It is an amenable number.

65257972 is a deficient number, since it is larger than the sum of its proper divisors (58557580).

65257972 is a wasteful number, since it uses less digits than its factorization.

65257972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8479 (or 8477 counting only the distinct ones).

The product of its digits is 264600, while the sum is 43.

The square root of 65257972 is about 8078.2406500426. The cubic root of 65257972 is about 402.6037889310.

The spelling of 65257972 in words is "sixty-five million, two hundred fifty-seven thousand, nine hundred seventy-two".