56345553440 has 96 divisors (see below), whose sum is σ = 153760166784. Its totient is φ = 19284029440.

The previous prime is 56345553421. The next prime is 56345553463. The reversal of 56345553440 is 4435554365.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 56345553391 and 56345553400.

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 15 ways as a sum of consecutive naturals, for example, 911684 + ... + 971523.

It is an arithmetic number, because the mean of its divisors is an integer number (1601668404).

Almost surely, 2^56345553440 is an apocalyptic number.

It is an amenable number.

56345553440 is an abundant number, since it is smaller than the sum of its proper divisors (97414613344).

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

56345553440 is a wasteful number, since it uses less digits than its factorization.

56345553440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1883250 (or 1883242 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 44.

The spelling of 56345553440 in words is "fifty-six billion, three hundred forty-five million, five hundred fifty-three thousand, four hundred forty".