56642272 has 12 divisors (see below), whose sum is σ = 111514536. Its totient is φ = 28321120.

The previous prime is 56642263. The next prime is 56642281. The reversal of 56642272 is 27224665.

It is an interprime number because it is at equal distance from previous prime (56642263) and next prime (56642281).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 885004 + ... + 885067.

It is an arithmetic number, because the mean of its divisors is an integer number (9292878).

Almost surely, 2^56642272 is an apocalyptic number.

It is an amenable number.

56642272 is a deficient number, since it is larger than the sum of its proper divisors (54872264).

56642272 is a wasteful number, since it uses less digits than its factorization.

56642272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1770081 (or 1770073 counting only the distinct ones).

The product of its digits is 40320, while the sum is 34.

The square root of 56642272 is about 7526.1060316740. The cubic root of 56642272 is about 384.0433255513.

The spelling of 56642272 in words is "fifty-six million, six hundred forty-two thousand, two hundred seventy-two".