56571272 has 8 divisors (see below), whose sum is σ = 106071150. Its totient is φ = 28285632.

The previous prime is 56571271. The next prime is 56571289. The reversal of 56571272 is 27217565.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 44970436 + 11600836 = 6706^2 + 3406^2 .

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

It is not an unprimeable number, because it can be changed into a prime (56571271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3535697 + ... + 3535712.

Almost surely, 2^56571272 is an apocalyptic number.

It is an amenable number.

56571272 is a deficient number, since it is larger than the sum of its proper divisors (49499878).

56571272 is a wasteful number, since it uses less digits than its factorization.

56571272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7071415 (or 7071411 counting only the distinct ones).

The product of its digits is 29400, while the sum is 35.

The square root of 56571272 is about 7521.3876379296. The cubic root of 56571272 is about 383.8827948145.

The spelling of 56571272 in words is "fifty-six million, five hundred seventy-one thousand, two hundred seventy-two".