551345955 has 64 divisors (see below), whose sum is σ = 962979840. Its totient is φ = 268304384.

The previous prime is 551345953. The next prime is 551346007. The reversal of 551345955 is 559543155.

It is a cyclic number.

It is not a de Polignac number, because 551345955 - 2¹ = 551345953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (551345953) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2145187 + ... + 2145443.

It is an arithmetic number, because the mean of its divisors is an integer number (15046560).

Almost surely, 2^551345955 is an apocalyptic number.

551345955 is a deficient number, since it is larger than the sum of its proper divisors (411633885).

551345955 is a wasteful number, since it uses less digits than its factorization.

551345955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508.

The product of its digits is 337500, while the sum is 42.

The square root of 551345955 is about 23480.7571215240. The cubic root of 551345955 is about 819.9890713396.

The spelling of 551345955 in words is "five hundred fifty-one million, three hundred forty-five thousand, nine hundred fifty-five".