551615655 has 16 divisors (see below), whose sum is σ = 883711584. Its totient is φ = 293819520.

The previous prime is 551615629. The next prime is 551615663. The reversal of 551615655 is 556516155.

551615655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 551615655 - 2⁶ = 551615591 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, 11116 + ... + 35025.

It is an arithmetic number, because the mean of its divisors is an integer number (55231974).

Almost surely, 2^551615655 is an apocalyptic number.

551615655 is a deficient number, since it is larger than the sum of its proper divisors (332095929).

551615655 is a wasteful number, since it uses less digits than its factorization.

551615655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46946.

The product of its digits is 112500, while the sum is 39.

The square root of 551615655 is about 23486.4994198795. The cubic root of 551615655 is about 820.1227532867.

The spelling of 551615655 in words is "five hundred fifty-one million, six hundred fifteen thousand, six hundred fifty-five".