56504023 has 2 divisors, whose sum is σ = 56504024. Its totient is φ = 56504022.

The previous prime is 56504009. The next prime is 56504047. The reversal of 56504023 is 32040565.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56504023 - 2⁵ = 56503991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56501023) 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, 28252011 + 28252012.

It is an arithmetic number, because the mean of its divisors is an integer number (28252012).

Almost surely, 2^56504023 is an apocalyptic number.

56504023 is a deficient number, since it is larger than the sum of its proper divisors (1).

56504023 is an equidigital number, since it uses as much as digits as its factorization.

56504023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 56504023 is about 7516.9157904023. The cubic root of 56504023 is about 383.7306211677.

Adding to 56504023 its reverse (32040565), we get a palindrome (88544588).

The spelling of 56504023 in words is "fifty-six million, five hundred four thousand, twenty-three".