56751371 has 2 divisors, whose sum is σ = 56751372. Its totient is φ = 56751370.

The previous prime is 56751367. The next prime is 56751379. The reversal of 56751371 is 17315765.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56751371 - 2² = 56751367 is a prime.

It is a super-2 number, since 2×56751371² = 6441436220759282, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (56751379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28375685 + 28375686.

It is an arithmetic number, because the mean of its divisors is an integer number (28375686).

Almost surely, 2^56751371 is an apocalyptic number.

56751371 is a deficient number, since it is larger than the sum of its proper divisors (1).

56751371 is an equidigital number, since it uses as much as digits as its factorization.

56751371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22050, while the sum is 35.

The square root of 56751371 is about 7533.3505825761. The cubic root of 56751371 is about 384.2897367538.

The spelling of 56751371 in words is "fifty-six million, seven hundred fifty-one thousand, three hundred seventy-one".