56131304 has 8 divisors (see below), whose sum is σ = 105246210. Its totient is φ = 28065648.

The previous prime is 56131303. The next prime is 56131307. The reversal of 56131304 is 40313165.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 48302500 + 7828804 = 6950^2 + 2798^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 56131304.

It is not an unprimeable number, because it can be changed into a prime (56131303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3508199 + ... + 3508214.

Almost surely, 2^56131304 is an apocalyptic number.

It is an amenable number.

56131304 is a deficient number, since it is larger than the sum of its proper divisors (49114906).

56131304 is a wasteful number, since it uses less digits than its factorization.

56131304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7016419 (or 7016415 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 56131304 is about 7492.0827544816. The cubic root of 56131304 is about 382.8850216256.

Adding to 56131304 its reverse (40313165), we get a palindrome (96444469).

The spelling of 56131304 in words is "fifty-six million, one hundred thirty-one thousand, three hundred four".