555253551 has 6 divisors (see below), whose sum is σ = 802032920. Its totient is φ = 370169028.

The previous prime is 555253513. The next prime is 555253613. The reversal of 555253551 is 155352555.

555253551 is a `hidden beast` number, since 5 + 5 + 52 + 53 + 551 = 666.

It is not a de Polignac number, because 555253551 - 2¹⁷ = 555122479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555253451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30847411 + ... + 30847428.

Almost surely, 2^555253551 is an apocalyptic number.

555253551 is a deficient number, since it is larger than the sum of its proper divisors (246779369).

555253551 is a wasteful number, since it uses less digits than its factorization.

555253551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61694845 (or 61694842 counting only the distinct ones).

The product of its digits is 93750, while the sum is 36.

The square root of 555253551 is about 23563.8186845851. The cubic root of 555253551 is about 821.9217029868.

The spelling of 555253551 in words is "five hundred fifty-five million, two hundred fifty-three thousand, five hundred fifty-one".