56570402 has 12 divisors (see below), whose sum is σ = 98709750. Its totient is φ = 24244416.

The previous prime is 56570377. The next prime is 56570419. The reversal of 56570402 is 20407565.

56570402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 54745201 + 1825201 = 7399^2 + 1351^2 .

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 5 ways as a sum of consecutive naturals, for example, 288527 + ... + 288722.

Almost surely, 2^56570402 is an apocalyptic number.

56570402 is a deficient number, since it is larger than the sum of its proper divisors (42139348).

56570402 is a wasteful number, since it uses less digits than its factorization.

56570402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577265 (or 577258 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 56570402 is about 7521.3298026346. The cubic root of 56570402 is about 383.8808269150.

Adding to 56570402 its reverse (20407565), we get a palindrome (76977967).

The spelling of 56570402 in words is "fifty-six million, five hundred seventy thousand, four hundred two".