56755093440 has 56 divisors (see below), whose sum is σ = 180197424720. Its totient is φ = 15134691328.

The previous prime is 56755093403. The next prime is 56755093441. The reversal of 56755093440 is 4439055765.

It is a super-2 number, since 2×56755093440² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 56755093440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56755093441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29558985 + ... + 29560904.

Almost surely, 2^56755093440 is an apocalyptic number.

It is an amenable number.

56755093440 is an abundant number, since it is smaller than the sum of its proper divisors (123442331280).

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

56755093440 is a wasteful number, since it uses less digits than its factorization.

56755093440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59119909 (or 59119899 counting only the distinct ones).

The product of its (nonzero) digits is 2268000, while the sum is 48.

The spelling of 56755093440 in words is "fifty-six billion, seven hundred fifty-five million, ninety-three thousand, four hundred forty".