551404605 has 32 divisors (see below), whose sum is σ = 983318400. Its totient is φ = 262213632.

The previous prime is 551404597. The next prime is 551404661. The reversal of 551404605 is 506404155.

551404605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 551404605 - 2³ = 551404597 is a prime.

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, 52060 + ... + 61749.

It is an arithmetic number, because the mean of its divisors is an integer number (30728700).

Almost surely, 2^551404605 is an apocalyptic number.

It is an amenable number.

551404605 is a deficient number, since it is larger than the sum of its proper divisors (431913795).

551404605 is a wasteful number, since it uses less digits than its factorization.

551404605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113853.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 551404605 is about 23482.0059833056. The cubic root of 551404605 is about 820.0181460390.

The spelling of 551404605 in words is "five hundred fifty-one million, four hundred four thousand, six hundred five".