551881928 has 32 divisors (see below), whose sum is σ = 1115674560. Its totient is φ = 254418240.

The previous prime is 551881901. The next prime is 551881949. The reversal of 551881928 is 829188155.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104651 + ... + 109797.

It is an arithmetic number, because the mean of its divisors is an integer number (34864830).

Almost surely, 2^551881928 is an apocalyptic number.

It is an amenable number.

551881928 is an abundant number, since it is smaller than the sum of its proper divisors (563792632).

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

551881928 is a wasteful number, since it uses less digits than its factorization.

551881928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6197 (or 6193 counting only the distinct ones).

The product of its digits is 230400, while the sum is 47.

The square root of 551881928 is about 23492.1673755318. The cubic root of 551881928 is about 820.2546938359.

The spelling of 551881928 in words is "five hundred fifty-one million, eight hundred eighty-one thousand, nine hundred twenty-eight".