56422645 has 4 divisors (see below), whose sum is σ = 67707180. Its totient is φ = 45138112.

The previous prime is 56422637. The next prime is 56422673. The reversal of 56422645 is 54622465.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15437041 + 40985604 = 3929^2 + 6402^2 .

It is a cyclic number.

It is not a de Polignac number, because 56422645 - 2³ = 56422637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56422645.

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, 5642260 + ... + 5642269.

It is an arithmetic number, because the mean of its divisors is an integer number (16926795).

Almost surely, 2^56422645 is an apocalyptic number.

It is an amenable number.

56422645 is a deficient number, since it is larger than the sum of its proper divisors (11284535).

56422645 is a wasteful number, since it uses less digits than its factorization.

56422645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11284534.

The product of its digits is 57600, while the sum is 34.

The square root of 56422645 is about 7511.5008486986. The cubic root of 56422645 is about 383.5463143275.

The spelling of 56422645 in words is "fifty-six million, four hundred twenty-two thousand, six hundred forty-five".