551406555304 has 32 divisors (see below), whose sum is σ = 1127914444800. Its totient is φ = 250631032320.

The previous prime is 551406555299. The next prime is 551406555307. The reversal of 551406555304 is 403555604155.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (551406555307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3135832 + ... + 3307000.

It is an arithmetic number, because the mean of its divisors is an integer number (35247326400).

Almost surely, 2^551406555304 is an apocalyptic number.

It is an amenable number.

551406555304 is an abundant number, since it is smaller than the sum of its proper divisors (576507889496).

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

551406555304 is a wasteful number, since it uses less digits than its factorization.

551406555304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207793 (or 207789 counting only the distinct ones).

The product of its (nonzero) digits is 900000, while the sum is 43.

The spelling of 551406555304 in words is "five hundred fifty-one billion, four hundred six million, five hundred fifty-five thousand, three hundred four".