551540808 has 96 divisors (see below), whose sum is σ = 1838491200. Its totient is φ = 145459584.

The previous prime is 551540783. The next prime is 551540813. The reversal of 551540808 is 808045155.

It is a super-3 number, since 3×551540808³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35538 + ... + 48641.

It is an arithmetic number, because the mean of its divisors is an integer number (19150950).

Almost surely, 2^551540808 is an apocalyptic number.

It is an amenable number.

551540808 is an abundant number, since it is smaller than the sum of its proper divisors (1286950392).

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

551540808 is a wasteful number, since it uses less digits than its factorization.

551540808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84211 (or 84204 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 36.

The square root of 551540808 is about 23484.9059610636. The cubic root of 551540808 is about 820.0856583133.

The spelling of 551540808 in words is "five hundred fifty-one million, five hundred forty thousand, eight hundred eight".