56642056 has 8 divisors (see below), whose sum is σ = 106203870. Its totient is φ = 28321024.

The previous prime is 56642009. The next prime is 56642071. The reversal of 56642056 is 65024665.

It can be written as a sum of positive squares in only one way, i.e., 31741956 + 24900100 = 5634^2 + 4990^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3540121 + ... + 3540136.

Almost surely, 2^56642056 is an apocalyptic number.

It is an amenable number.

56642056 is a deficient number, since it is larger than the sum of its proper divisors (49561814).

56642056 is a wasteful number, since it uses less digits than its factorization.

56642056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7080263 (or 7080259 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 56642056 is about 7526.0916816101. The cubic root of 56642056 is about 384.0428373796.

The spelling of 56642056 in words is "fifty-six million, six hundred forty-two thousand, fifty-six".