56446057542 has 144 divisors (see below), whose sum is σ = 140628123648. Its totient is φ = 15056375040.

The previous prime is 56446057513. The next prime is 56446057561. The reversal of 56446057542 is 24575064465.

It is a junction number, because it is equal to n+sod(n) for n = 56446057491 and 56446057500.

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 71 ways as a sum of consecutive naturals, for example, 10788067 + ... + 10793297.

It is an arithmetic number, because the mean of its divisors is an integer number (976584192).

Almost surely, 2^56446057542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56446057542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70314061824).

56446057542 is an abundant number, since it is smaller than the sum of its proper divisors (84182066106).

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

56446057542 is a wasteful number, since it uses less digits than its factorization.

56446057542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5411 (or 5387 counting only the distinct ones).

The product of its (nonzero) digits is 4032000, while the sum is 48.

The spelling of 56446057542 in words is "fifty-six billion, four hundred forty-six million, fifty-seven thousand, five hundred forty-two".