56022516 has 90 divisors (see below), whose sum is σ = 161090930. Its totient is φ = 16964640.

The previous prime is 56022509. The next prime is 56022517. The reversal of 56022516 is 61522065.

56022516 is a `hidden beast` number, since 5 + 602 + 2 + 51 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 35283600 + 20738916 = 5940^2 + 4554^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 56022516.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56022517) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 38490 + ... + 39918.

Almost surely, 2^56022516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56022516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80545465).

56022516 is an abundant number, since it is smaller than the sum of its proper divisors (105068414).

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

56022516 is a wasteful number, since it uses less digits than its factorization.

56022516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1467 (or 1445 counting only the distinct ones).

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

The square root of 56022516 is about 7484.8190358886. The cubic root of 56022516 is about 382.6375053487.

It can be divided in two parts, 5602 and 2516, that added together give a palindrome (8118).

The spelling of 56022516 in words is "fifty-six million, twenty-two thousand, five hundred sixteen".