55923825920 has 144 divisors (see below), whose sum is σ = 136207516032. Its totient is φ = 21995151360.

The previous prime is 55923825917. The next prime is 55923825989. The reversal of 55923825920 is 2952832955.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51164894 + ... + 51165986.

It is an arithmetic number, because the mean of its divisors is an integer number (945885528).

Almost surely, 2^55923825920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55923825920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68103758016).

55923825920 is an abundant number, since it is smaller than the sum of its proper divisors (80283690112).

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

55923825920 is a wasteful number, since it uses less digits than its factorization.

55923825920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1748 (or 1734 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 50.

The spelling of 55923825920 in words is "fifty-five billion, nine hundred twenty-three million, eight hundred twenty-five thousand, nine hundred twenty".