551972000 has 48 divisors (see below), whose sum is σ = 1356205032. Its totient is φ = 220787200.

The previous prime is 551971943. The next prime is 551972017. The reversal of 551972000 is 279155.

It can be written as a sum of positive squares in 4 ways, for example, as 25361296 + 526610704 = 5036^2 + 22948^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64997 + ... + 72996.

Almost surely, 2^551972000 is an apocalyptic number.

551972000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

551972000 is an abundant number, since it is smaller than the sum of its proper divisors (804233032).

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

551972000 is a wasteful number, since it uses less digits than its factorization.

551972000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138018 (or 138000 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 551972000 is about 23494.0843618133. The cubic root of 551972000 is about 820.2993156762.

The spelling of 551972000 in words is "five hundred fifty-one million, nine hundred seventy-two thousand".