65431056 has 40 divisors (see below), whose sum is σ = 169321504. Its totient is φ = 21772800.

The previous prime is 65431043. The next prime is 65431081. The reversal of 65431056 is 65013456.

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, 49800 + ... + 51096.

Almost surely, 2^65431056 is an apocalyptic number.

It is an amenable number.

65431056 is an abundant number, since it is smaller than the sum of its proper divisors (103890448).

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

65431056 is a wasteful number, since it uses less digits than its factorization.

65431056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2359 (or 2353 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 65431056 is about 8088.9465321511. The cubic root of 65431056 is about 402.9594172919.

The spelling of 65431056 in words is "sixty-five million, four hundred thirty-one thousand, fifty-six".