555766272 has 140 divisors (see below), whose sum is σ = 1666027110. Its totient is φ = 185131008.

The previous prime is 555766259. The next prime is 555766331. The reversal of 555766272 is 272667555.

555766272 is a `hidden beast` number, since 5 + 5 + 576 + 6 + 2 + 72 = 666.

It can be written as a sum of positive squares in only one way, i.e., 524226816 + 31539456 = 22896^2 + 5616^2 .

It is a super-2 number, since 2×555766272² = 617752298185555968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 372504 + ... + 373992.

Almost surely, 2^555766272 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 555766272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (833013555).

555766272 is an abundant number, since it is smaller than the sum of its proper divisors (1110260838).

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

555766272 is an frugal number, since it uses more digits than its factorization.

555766272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525 (or 1494 counting only the distinct ones).

The product of its digits is 882000, while the sum is 45.

The square root of 555766272 is about 23574.6955865818. The cubic root of 555766272 is about 822.1746125938.

The spelling of 555766272 in words is "five hundred fifty-five million, seven hundred sixty-six thousand, two hundred seventy-two".