56131712 has 128 divisors (see below), whose sum is σ = 141657600. Its totient is φ = 21565440.

The previous prime is 56131709. The next prime is 56131741. The reversal of 56131712 is 21713165.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 710489 + ... + 710567.

It is an arithmetic number, because the mean of its divisors is an integer number (1106700).

Almost surely, 2^56131712 is an apocalyptic number.

56131712 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56131712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70828800).

56131712 is an abundant number, since it is smaller than the sum of its proper divisors (85525888).

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

56131712 is a wasteful number, since it uses less digits than its factorization.

56131712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174 (or 162 counting only the distinct ones).

The product of its digits is 1260, while the sum is 26.

The square root of 56131712 is about 7492.1099831756. The cubic root of 56131712 is about 382.8859493118.

Adding to 56131712 its reverse (21713165), we get a palindrome (77844877).

The spelling of 56131712 in words is "fifty-six million, one hundred thirty-one thousand, seven hundred twelve".