556515023 has 2 divisors, whose sum is σ = 556515024. Its totient is φ = 556515022.

The previous prime is 556514993. The next prime is 556515041. The reversal of 556515023 is 320515655.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 556515023 - 2⁸ = 556514767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556515623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278257511 + 278257512.

It is an arithmetic number, because the mean of its divisors is an integer number (278257512).

Almost surely, 2^556515023 is an apocalyptic number.

556515023 is a deficient number, since it is larger than the sum of its proper divisors (1).

556515023 is an equidigital number, since it uses as much as digits as its factorization.

556515023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22500, while the sum is 32.

The square root of 556515023 is about 23590.5706374390. The cubic root of 556515023 is about 822.5436693031.

The spelling of 556515023 in words is "five hundred fifty-six million, five hundred fifteen thousand, twenty-three".