56395961 has 2 divisors, whose sum is σ = 56395962. Its totient is φ = 56395960.

The previous prime is 56395943. The next prime is 56395973. The reversal of 56395961 is 16959365.

56395961 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 can be written as a sum of positive squares in only one way, i.e., 51036736 + 5359225 = 7144^2 + 2315^2 .

It is a cyclic number.

It is not a de Polignac number, because 56395961 - 2¹⁸ = 56133817 is a prime.

It is a super-2 number, since 2×56395961² = 6361008834227042, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56395901) 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, 28197980 + 28197981.

It is an arithmetic number, because the mean of its divisors is an integer number (28197981).

Almost surely, 2^56395961 is an apocalyptic number.

It is an amenable number.

56395961 is a deficient number, since it is larger than the sum of its proper divisors (1).

56395961 is an equidigital number, since it uses as much as digits as its factorization.

56395961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 218700, while the sum is 44.

The square root of 56395961 is about 7509.7244290320. The cubic root of 56395961 is about 383.4858411866.

The spelling of 56395961 in words is "fifty-six million, three hundred ninety-five thousand, nine hundred sixty-one".