56561002 has 16 divisors (see below), whose sum is σ = 88725312. Its totient is φ = 26991360.

The previous prime is 56560997. The next prime is 56561003. The reversal of 56561002 is 20016565.

It is not an unprimeable number, because it can be changed into a prime (56561003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25477 + ... + 27607.

It is an arithmetic number, because the mean of its divisors is an integer number (5545332).

Almost surely, 2^56561002 is an apocalyptic number.

56561002 is a deficient number, since it is larger than the sum of its proper divisors (32164310).

56561002 is a wasteful number, since it uses less digits than its factorization.

56561002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2733.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 56561002 is about 7520.7048871765. The cubic root of 56561002 is about 383.8595632651.

Adding to 56561002 its reverse (20016565), we get a palindrome (76577567).

The spelling of 56561002 in words is "fifty-six million, five hundred sixty-one thousand, two".