56715651 has 6 divisors (see below), whose sum is σ = 81922620. Its totient is φ = 37810428.

The previous prime is 56715649. The next prime is 56715653. The reversal of 56715651 is 15651765.

It is an interprime number because it is at equal distance from previous prime (56715649) and next prime (56715653).

It is not a de Polignac number, because 56715651 - 2¹ = 56715649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56715653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3150861 + ... + 3150878.

It is an arithmetic number, because the mean of its divisors is an integer number (13653770).

Almost surely, 2^56715651 is an apocalyptic number.

56715651 is a deficient number, since it is larger than the sum of its proper divisors (25206969).

56715651 is a wasteful number, since it uses less digits than its factorization.

56715651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6301745 (or 6301742 counting only the distinct ones).

The product of its digits is 31500, while the sum is 36.

The square root of 56715651 is about 7530.9794183758. The cubic root of 56715651 is about 384.2090942946.

The spelling of 56715651 in words is "fifty-six million, seven hundred fifteen thousand, six hundred fifty-one".