56512740 has 24 divisors (see below), whose sum is σ = 158235840. Its totient is φ = 15070048.

The previous prime is 56512739. The next prime is 56512741. The reversal of 56512740 is 4721565.

56512740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (56512739) and next prime (56512741).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 56512698 and 56512707.

It is not an unprimeable number, because it can be changed into a prime (56512741) 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 7 ways as a sum of consecutive naturals, for example, 470880 + ... + 470999.

It is an arithmetic number, because the mean of its divisors is an integer number (6593160).

Almost surely, 2^56512740 is an apocalyptic number.

It is an amenable number.

56512740 is an abundant number, since it is smaller than the sum of its proper divisors (101723100).

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

56512740 is a wasteful number, since it uses less digits than its factorization.

56512740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941891 (or 941889 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 56512740 is about 7517.4955936136. The cubic root of 56512740 is about 383.7503531422.

The spelling of 56512740 in words is "fifty-six million, five hundred twelve thousand, seven hundred forty".