56561424 has 20 divisors (see below), whose sum is σ = 146117136. Its totient is φ = 18853792.

The previous prime is 56561413. The next prime is 56561447. The reversal of 56561424 is 42416565.

56561424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 589134 + ... + 589229.

Almost surely, 2^56561424 is an apocalyptic number.

It is an amenable number.

56561424 is an abundant number, since it is smaller than the sum of its proper divisors (89555712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56561424 is a wasteful number, since it uses less digits than its factorization.

56561424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178374 (or 1178368 counting only the distinct ones).

The product of its digits is 28800, while the sum is 33.

The square root of 56561424 is about 7520.7329430050. The cubic root of 56561424 is about 383.8605179178.

Adding to 56561424 its reverse (42416565), we get a palindrome (98977989).

The spelling of 56561424 in words is "fifty-six million, five hundred sixty-one thousand, four hundred twenty-four".