551955498 has 16 divisors (see below), whose sum is σ = 1127399040. Its totient is φ = 180070496.

The previous prime is 551955487. The next prime is 551955553. The reversal of 551955498 is 894559155.

It is a self number, because there is not a number n which added to its sum of digits gives 551955498.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 978363 + ... + 978926.

It is an arithmetic number, because the mean of its divisors is an integer number (70462440).

Almost surely, 2^551955498 is an apocalyptic number.

551955498 is an abundant number, since it is smaller than the sum of its proper divisors (575443542).

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

551955498 is a wasteful number, since it uses less digits than its factorization.

551955498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1957341.

The product of its digits is 1620000, while the sum is 51.

The square root of 551955498 is about 23493.7331643994. The cubic root of 551955498 is about 820.2911409172.

The spelling of 551955498 in words is "five hundred fifty-one million, nine hundred fifty-five thousand, four hundred ninety-eight".