551330944 has 32 divisors (see below), whose sum is σ = 1162968300. Its totient is φ = 259448832.

The previous prime is 551330929. The next prime is 551330951. The reversal of 551330944 is 449033155.

It can be written as a sum of positive squares in 2 ways, for example, as 542330944 + 9000000 = 23288^2 + 3000^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×551330944² = 607931619623862272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124509 + ... + 128860.

Almost surely, 2^551330944 is an apocalyptic number.

It is an amenable number.

551330944 is an abundant number, since it is smaller than the sum of its proper divisors (611637356).

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

551330944 is a wasteful number, since it uses less digits than its factorization.

551330944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253400 (or 253388 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 551330944 is about 23480.4374746298. The cubic root of 551330944 is about 819.9816295706.

The spelling of 551330944 in words is "five hundred fifty-one million, three hundred thirty thousand, nine hundred forty-four".