556615255 has 16 divisors (see below), whose sum is σ = 778939200. Its totient is φ = 381677856.

The previous prime is 556615243. The next prime is 556615361. The reversal of 556615255 is 552516655.

It is not a de Polignac number, because 556615255 - 2⁵ = 556615223 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160564 + ... + 163993.

It is an arithmetic number, because the mean of its divisors is an integer number (48683700).

Almost surely, 2^556615255 is an apocalyptic number.

556615255 is a deficient number, since it is larger than the sum of its proper divisors (222323945).

556615255 is an equidigital number, since it uses as much as digits as its factorization.

556615255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324583 (or 324569 counting only the distinct ones).

The product of its digits is 225000, while the sum is 40.

The square root of 556615255 is about 23592.6949499204. The cubic root of 556615255 is about 822.5930481725.

The spelling of 556615255 in words is "five hundred fifty-six million, six hundred fifteen thousand, two hundred fifty-five".