52221056 has 16 divisors (see below), whose sum is σ = 104034390. Its totient is φ = 26110464.

The previous prime is 52221053. The next prime is 52221079. The reversal of 52221056 is 65012225.

It can be written as a sum of positive squares in only one way, i.e., 30913600 + 21307456 = 5560^2 + 4616^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (52221053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203861 + ... + 204116.

Almost surely, 2^52221056 is an apocalyptic number.

It is an amenable number.

52221056 is a deficient number, since it is larger than the sum of its proper divisors (51813334).

52221056 is an equidigital number, since it uses as much as digits as its factorization.

52221056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407991 (or 407979 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 52221056 is about 7226.4137717128. The cubic root of 52221056 is about 373.7792743743.

The spelling of 52221056 in words is "fifty-two million, two hundred twenty-one thousand, fifty-six".