55256234807480 has 32 divisors (see below), whose sum is σ = 142087460934240. Its totient is φ = 18944994791040.

The previous prime is 55256234807441. The next prime is 55256234807483. The reversal of 55256234807480 is 8470843265255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55256234807483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98671847591 + ... + 98671848150.

It is an arithmetic number, because the mean of its divisors is an integer number (4440233154195).

Almost surely, 2^{55256234807480} is an apocalyptic number.

It is an amenable number.

55256234807480 is an abundant number, since it is smaller than the sum of its proper divisors (86831226126760).

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

55256234807480 is a wasteful number, since it uses less digits than its factorization.

55256234807480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197343695759 (or 197343695755 counting only the distinct ones).

The product of its (nonzero) digits is 64512000, while the sum is 59.

The spelling of 55256234807480 in words is "fifty-five trillion, two hundred fifty-six billion, two hundred thirty-four million, eight hundred seven thousand, four hundred eighty".