56312740 has 96 divisors (see below), whose sum is σ = 139345920. Its totient is φ = 18902400.

The previous prime is 56312731. The next prime is 56312741. The reversal of 56312740 is 4721365.

56312740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×56312740² = 6342249372615200, which contains 22 as substring.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 56312699 and 56312708.

It is not an unprimeable number, because it can be changed into a prime (56312741) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 156681 + ... + 157039.

It is an arithmetic number, because the mean of its divisors is an integer number (1451520).

Almost surely, 2^56312740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56312740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69672960).

56312740 is an abundant number, since it is smaller than the sum of its proper divisors (83033180).

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

56312740 is a wasteful number, since it uses less digits than its factorization.

56312740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433 (or 431 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 56312740 is about 7504.1815010033. The cubic root of 56312740 is about 383.2971173515.

The spelling of 56312740 in words is "fifty-six million, three hundred twelve thousand, seven hundred forty".