551791290 has 32 divisors (see below), whose sum is σ = 1337958720. Its totient is φ = 145626624.

The previous prime is 551791283. The next prime is 551791309. The reversal of 551791290 is 92197155.

551791290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 91900 + ... + 97719.

It is an arithmetic number, because the mean of its divisors is an integer number (41811210).

Almost surely, 2^551791290 is an apocalyptic number.

551791290 is an abundant number, since it is smaller than the sum of its proper divisors (786167430).

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

551791290 is a wasteful number, since it uses less digits than its factorization.

551791290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189726.

The product of its (nonzero) digits is 28350, while the sum is 39.

The square root of 551791290 is about 23490.2381852547. The cubic root of 551791290 is about 820.2097866969.

The spelling of 551791290 in words is "five hundred fifty-one million, seven hundred ninety-one thousand, two hundred ninety".