56423351120 has 20 divisors (see below), whose sum is σ = 131184291540. Its totient is φ = 22569340416.

The previous prime is 56423351111. The next prime is 56423351129. The reversal of 56423351120 is 2115332465.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (56423351111) and next prime (56423351129).

It can be written as a sum of positive squares in 2 ways, for example, as 15919373584 + 40503977536 = 126172^2 + 201256^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×56423351120² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56423351129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352645865 + ... + 352646024.

It is an arithmetic number, because the mean of its divisors is an integer number (6559214577).

Almost surely, 2^56423351120 is an apocalyptic number.

It is an amenable number.

56423351120 is an abundant number, since it is smaller than the sum of its proper divisors (74760940420).

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

56423351120 is a wasteful number, since it uses less digits than its factorization.

56423351120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705291902 (or 705291896 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 56423351120 its reverse (2115332465), we get a palindrome (58538683585).

The spelling of 56423351120 in words is "fifty-six billion, four hundred twenty-three million, three hundred fifty-one thousand, one hundred twenty".