551155290 has 32 divisors (see below), whose sum is σ = 1511740800. Its totient is φ = 125978304.

The previous prime is 551155289. The next prime is 551155301. The reversal of 551155290 is 92551155.

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, 1312065 + ... + 1312484.

It is an arithmetic number, because the mean of its divisors is an integer number (47241900).

Almost surely, 2^551155290 is an apocalyptic number.

551155290 is an abundant number, since it is smaller than the sum of its proper divisors (960585510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

551155290 is a wasteful number, since it uses less digits than its factorization.

551155290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2624566.

The product of its (nonzero) digits is 11250, while the sum is 33.

The square root of 551155290 is about 23476.6967437926. The cubic root of 551155290 is about 819.8945382910.

The spelling of 551155290 in words is "five hundred fifty-one million, one hundred fifty-five thousand, two hundred ninety".