56216502 has 24 divisors (see below), whose sum is σ = 123801600. Its totient is φ = 18431280.

The previous prime is 56216491. The next prime is 56216507. The reversal of 56216502 is 20561265.

56216502 is a `hidden beast` number, since 5 + 6 + 2 + 1 + 650 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56216507) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24502 + ... + 26697.

It is an arithmetic number, because the mean of its divisors is an integer number (5158400).

Almost surely, 2^56216502 is an apocalyptic number.

56216502 is an abundant number, since it is smaller than the sum of its proper divisors (67585098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56216502 is a wasteful number, since it uses less digits than its factorization.

56216502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51268 (or 51265 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 56216502 is about 7497.7664674221. The cubic root of 56216502 is about 383.0786423281.

Adding to 56216502 its reverse (20561265), we get a palindrome (76777767).

The spelling of 56216502 in words is "fifty-six million, two hundred sixteen thousand, five hundred two".