65056831 has 8 divisors (see below), whose sum is σ = 76914720. Its totient is φ = 53839968.

The previous prime is 65056819. The next prime is 65056837. The reversal of 65056831 is 13865056.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65056831 - 2¹¹ = 65054783 is a prime.

It is a super-2 number, since 2×65056831² = 8464782519525122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65056837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160036 + ... + 160441.

It is an arithmetic number, because the mean of its divisors is an integer number (9614340).

Almost surely, 2^65056831 is an apocalyptic number.

65056831 is a deficient number, since it is larger than the sum of its proper divisors (11857889).

65056831 is a wasteful number, since it uses less digits than its factorization.

65056831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320513.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 65056831 is about 8065.7814872460. The cubic root of 65056831 is about 402.1897221682.

The spelling of 65056831 in words is "sixty-five million, fifty-six thousand, eight hundred thirty-one".