56156651 has 2 divisors, whose sum is σ = 56156652. Its totient is φ = 56156650.

The previous prime is 56156641. The next prime is 56156657. The reversal of 56156651 is 15665165.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56156651 - 2¹⁸ = 55894507 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (56156657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28078325 + 28078326.

It is an arithmetic number, because the mean of its divisors is an integer number (28078326).

Almost surely, 2^56156651 is an apocalyptic number.

56156651 is a deficient number, since it is larger than the sum of its proper divisors (1).

56156651 is an equidigital number, since it uses as much as digits as its factorization.

56156651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27000, while the sum is 35.

The square root of 56156651 is about 7493.7741492522. The cubic root of 56156651 is about 382.9426455983.

The spelling of 56156651 in words is "fifty-six million, one hundred fifty-six thousand, six hundred fifty-one".