56623510369 has 2 divisors, whose sum is σ = 56623510370. Its totient is φ = 56623510368.

The previous prime is 56623510343. The next prime is 56623510373. The reversal of 56623510369 is 96301532665.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56602119744 + 21390625 = 237912^2 + 4625^2 .

It is a cyclic number.

It is not a de Polignac number, because 56623510369 - 2⁷ = 56623510241 is a prime.

It is a super-2 number, since 2×56623510369² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56623510169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28311755184 + 28311755185.

It is an arithmetic number, because the mean of its divisors is an integer number (28311755185).

Almost surely, 2^56623510369 is an apocalyptic number.

It is an amenable number.

56623510369 is a deficient number, since it is larger than the sum of its proper divisors (1).

56623510369 is an equidigital number, since it uses as much as digits as its factorization.

56623510369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 874800, while the sum is 46.

The spelling of 56623510369 in words is "fifty-six billion, six hundred twenty-three million, five hundred ten thousand, three hundred sixty-nine".