56156563 has 2 divisors, whose sum is σ = 56156564. Its totient is φ = 56156562.

The previous prime is 56156459. The next prime is 56156567. The reversal of 56156563 is 36565165.

It is a happy number.

56156563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56156563 - 2¹³ = 56148371 is a prime.

It is not a weakly prime, because it can be changed into another prime (56156567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28078281 + 28078282.

It is an arithmetic number, because the mean of its divisors is an integer number (28078282).

Almost surely, 2^56156563 is an apocalyptic number.

56156563 is a deficient number, since it is larger than the sum of its proper divisors (1).

56156563 is an equidigital number, since it uses as much as digits as its factorization.

56156563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81000, while the sum is 37.

The square root of 56156563 is about 7493.7682777092. The cubic root of 56156563 is about 382.9424455688.

The spelling of 56156563 in words is "fifty-six million, one hundred fifty-six thousand, five hundred sixty-three".