56622478841 has 4 divisors (see below), whose sum is σ = 56624427684. Its totient is φ = 56620530000.

The previous prime is 56622478823. The next prime is 56622478849. The reversal of 56622478841 is 14887422665.

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 12255375616 + 44367103225 = 110704^2 + 210635^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56622478841 is a prime.

It is a super-2 number, since 2×56622478841² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56622478849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 930170 + ... + 989171.

It is an arithmetic number, because the mean of its divisors is an integer number (14156106921).

Almost surely, 2^56622478841 is an apocalyptic number.

It is an amenable number.

56622478841 is a deficient number, since it is larger than the sum of its proper divisors (1948843).

56622478841 is a wasteful number, since it uses less digits than its factorization.

56622478841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948842.

The product of its digits is 5160960, while the sum is 53.

The spelling of 56622478841 in words is "fifty-six billion, six hundred twenty-two million, four hundred seventy-eight thousand, eight hundred forty-one".