56534352440 has 32 divisors (see below), whose sum is σ = 128117430000. Its totient is φ = 22451049984.

The previous prime is 56534352439. The next prime is 56534352529. The reversal of 56534352440 is 4425343565.

It is a super-2 number, since 2×56534352440² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5078465 + ... + 5089584.

Almost surely, 2^56534352440 is an apocalyptic number.

It is an amenable number.

56534352440 is an abundant number, since it is smaller than the sum of its proper divisors (71583077560).

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

56534352440 is a wasteful number, since it uses less digits than its factorization.

56534352440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10168199 (or 10168195 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 41.

The spelling of 56534352440 in words is "fifty-six billion, five hundred thirty-four million, three hundred fifty-two thousand, four hundred forty".