56561626 has 32 divisors (see below), whose sum is σ = 94723200. Its totient is φ = 25116480.

The previous prime is 56561621. The next prime is 56561627. The reversal of 56561626 is 62616565.

It is not an unprimeable number, because it can be changed into a prime (56561621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246880 + ... + 247108.

It is an arithmetic number, because the mean of its divisors is an integer number (2960100).

Almost surely, 2^56561626 is an apocalyptic number.

56561626 is a deficient number, since it is larger than the sum of its proper divisors (38161574).

56561626 is a wasteful number, since it uses less digits than its factorization.

56561626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454.

The product of its digits is 64800, while the sum is 37.

The square root of 56561626 is about 7520.7463725351. The cubic root of 56561626 is about 383.8609748826.

The spelling of 56561626 in words is "fifty-six million, five hundred sixty-one thousand, six hundred twenty-six".