551150655 has 32 divisors (see below), whose sum is σ = 995189760. Its totient is φ = 258007680.

The previous prime is 551150647. The next prime is 551150669. The reversal of 551150655 is 556051155.

It is not a de Polignac number, because 551150655 - 2³ = 551150647 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52807 + ... + 62376.

It is an arithmetic number, because the mean of its divisors is an integer number (31099680).

Almost surely, 2^551150655 is an apocalyptic number.

551150655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

551150655 is a deficient number, since it is larger than the sum of its proper divisors (444039105).

551150655 is a wasteful number, since it uses less digits than its factorization.

551150655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115231.

The product of its (nonzero) digits is 18750, while the sum is 33.

The square root of 551150655 is about 23476.5980286753. The cubic root of 551150655 is about 819.8922399540.

The spelling of 551150655 in words is "five hundred fifty-one million, one hundred fifty thousand, six hundred fifty-five".