56616751 has 8 divisors (see below), whose sum is σ = 59863680. Its totient is φ = 53396568.

The previous prime is 56616733. The next prime is 56616761. The reversal of 56616751 is 15761665.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56616751 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56616751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56616761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2251 + ... + 10876.

It is an arithmetic number, because the mean of its divisors is an integer number (7482960).

Almost surely, 2^56616751 is an apocalyptic number.

56616751 is a deficient number, since it is larger than the sum of its proper divisors (3246929).

56616751 is a wasteful number, since it uses less digits than its factorization.

56616751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13373.

The product of its digits is 37800, while the sum is 37.

The square root of 56616751 is about 7524.4103423458. The cubic root of 56616751 is about 383.9856381167.

The spelling of 56616751 in words is "fifty-six million, six hundred sixteen thousand, seven hundred fifty-one".