555242555 has 16 divisors (see below), whose sum is σ = 787734720. Its totient is φ = 367608192.

The previous prime is 555242549. The next prime is 555242561.

555242555 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (555242549) and next prime (555242561).

It is not a de Polignac number, because 555242555 - 2⁸ = 555242299 is a prime.

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, 272504 + ... + 274533.

It is an arithmetic number, because the mean of its divisors is an integer number (49233420).

Almost surely, 2^555242555 is an apocalyptic number.

555242555 is a deficient number, since it is larger than the sum of its proper divisors (232492165).

555242555 is a wasteful number, since it uses less digits than its factorization.

555242555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547078.

The product of its digits is 250000, while the sum is 38.

The square root of 555242555 is about 23563.5853596179. The cubic root of 555242555 is about 821.9162772910.

The spelling of 555242555 in words is "five hundred fifty-five million, two hundred forty-two thousand, five hundred fifty-five".