551976828 has 48 divisors (see below), whose sum is σ = 1460027520. Its totient is φ = 160899264.

The previous prime is 551976827. The next prime is 551976833. The reversal of 551976828 is 828679155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551976823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90150 + ... + 96077.

It is an arithmetic number, because the mean of its divisors is an integer number (30417240).

Almost surely, 2^551976828 is an apocalyptic number.

It is an amenable number.

551976828 is an abundant number, since it is smaller than the sum of its proper divisors (908050692).

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

551976828 is a wasteful number, since it uses less digits than its factorization.

551976828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186266 (or 186264 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 51.

The square root of 551976828 is about 23494.1871108579. The cubic root of 551976828 is about 820.3017073395.

The spelling of 551976828 in words is "five hundred fifty-one million, nine hundred seventy-six thousand, eight hundred twenty-eight".