56722445 has 16 divisors (see below), whose sum is σ = 73468080. Its totient is φ = 41793024.

The previous prime is 56722433. The next prime is 56722447. The reversal of 56722445 is 54422765.

It can be written as a sum of positive squares in 8 ways, for example, as 3636649 + 53085796 = 1907^2 + 7286^2 .

It is not a de Polignac number, because 56722445 - 2⁶ = 56722381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56722447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43361 + ... + 44649.

It is an arithmetic number, because the mean of its divisors is an integer number (4591755).

Almost surely, 2^56722445 is an apocalyptic number.

It is an amenable number.

56722445 is a deficient number, since it is larger than the sum of its proper divisors (16745635).

56722445 is a wasteful number, since it uses less digits than its factorization.

56722445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984.

The product of its digits is 67200, while the sum is 35.

The square root of 56722445 is about 7531.4304750160. The cubic root of 56722445 is about 384.2244352239.

The spelling of 56722445 in words is "fifty-six million, seven hundred twenty-two thousand, four hundred forty-five".