551904456 has 96 divisors (see below), whose sum is σ = 1497767040. Its totient is φ = 169362432.

The previous prime is 551904443. The next prime is 551904487. The reversal of 551904456 is 654409155.

It is a congruent number.

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, 325146 + ... + 326838.

It is an arithmetic number, because the mean of its divisors is an integer number (15601740).

Almost surely, 2^551904456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551904456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (748883520).

551904456 is an abundant number, since it is smaller than the sum of its proper divisors (945862584).

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

551904456 is a wasteful number, since it uses less digits than its factorization.

551904456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1783 (or 1762 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 39.

The square root of 551904456 is about 23492.6468495996. The cubic root of 551904456 is about 820.2658547053.

The spelling of 551904456 in words is "five hundred fifty-one million, nine hundred four thousand, four hundred fifty-six".