56992261 has 2 divisors, whose sum is σ = 56992262. Its totient is φ = 56992260.

The previous prime is 56992241. The next prime is 56992283. The reversal of 56992261 is 16229965.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50836900 + 6155361 = 7130^2 + 2481^2 .

It is a cyclic number.

It is not a de Polignac number, because 56992261 - 2⁹ = 56991749 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56992231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28496130 + 28496131.

It is an arithmetic number, because the mean of its divisors is an integer number (28496131).

Almost surely, 2^56992261 is an apocalyptic number.

It is an amenable number.

56992261 is a deficient number, since it is larger than the sum of its proper divisors (1).

56992261 is an equidigital number, since it uses as much as digits as its factorization.

56992261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 40.

The square root of 56992261 is about 7549.3218900773. The cubic root of 56992261 is about 384.8326950585.

The spelling of 56992261 in words is "fifty-six million, nine hundred ninety-two thousand, two hundred sixty-one".