556131272 has 8 divisors (see below), whose sum is σ = 1042746150. Its totient is φ = 278065632.

The previous prime is 556131259. The next prime is 556131293. The reversal of 556131272 is 272131655.

It can be written as a sum of positive squares in only one way, i.e., 417221476 + 138909796 = 20426^2 + 11786^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×556131272³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34758197 + ... + 34758212.

Almost surely, 2^556131272 is an apocalyptic number.

It is an amenable number.

556131272 is a deficient number, since it is larger than the sum of its proper divisors (486614878).

556131272 is a wasteful number, since it uses less digits than its factorization.

556131272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69516415 (or 69516411 counting only the distinct ones).

The product of its digits is 12600, while the sum is 32.

The square root of 556131272 is about 23582.4356672503. The cubic root of 556131272 is about 822.3545611783.

The spelling of 556131272 in words is "five hundred fifty-six million, one hundred thirty-one thousand, two hundred seventy-two".