56215132 has 12 divisors (see below), whose sum is σ = 98877240. Its totient is φ = 27964496.

The previous prime is 56215123. The next prime is 56215163. The reversal of 56215132 is 23151265.

It is a junction number, because it is equal to n+sod(n) for n = 56215097 and 56215106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34882 + ... + 36457.

It is an arithmetic number, because the mean of its divisors is an integer number (8239770).

Almost surely, 2^56215132 is an apocalyptic number.

It is an amenable number.

56215132 is a deficient number, since it is larger than the sum of its proper divisors (42662108).

56215132 is a wasteful number, since it uses less digits than its factorization.

56215132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71540 (or 71538 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 56215132 is about 7497.6751063246. The cubic root of 56215132 is about 383.0755304186.

Adding to 56215132 its reverse (23151265), we get a palindrome (79366397).

The spelling of 56215132 in words is "fifty-six million, two hundred fifteen thousand, one hundred thirty-two".