56751357 has 24 divisors (see below), whose sum is σ = 83534304. Its totient is φ = 34068384.

The previous prime is 56751353. The next prime is 56751361. The reversal of 56751357 is 75315765.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (56751353) and next prime (56751361).

It is not a de Polignac number, because 56751357 - 2² = 56751353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56751353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71718 + ... + 72504.

It is an arithmetic number, because the mean of its divisors is an integer number (3480596).

Almost surely, 2^56751357 is an apocalyptic number.

It is an amenable number.

56751357 is a deficient number, since it is larger than the sum of its proper divisors (26782947).

56751357 is a wasteful number, since it uses less digits than its factorization.

56751357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889 (or 846 counting only the distinct ones).

The product of its digits is 110250, while the sum is 39.

The square root of 56751357 is about 7533.3496533747. The cubic root of 56751357 is about 384.2897051536.

The spelling of 56751357 in words is "fifty-six million, seven hundred fifty-one thousand, three hundred fifty-seven".