55225535513440 has 24 divisors (see below), whose sum is σ = 130470327650880. Its totient is φ = 22090214205312.

The previous prime is 55225535513417. The next prime is 55225535513471. The reversal of 55225535513440 is 4431553552255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172579798320 + ... + 172579798639.

It is an arithmetic number, because the mean of its divisors is an integer number (5436263652120).

Almost surely, 2^{55225535513440} is an apocalyptic number.

It is an amenable number.

55225535513440 is an abundant number, since it is smaller than the sum of its proper divisors (75244792137440).

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

55225535513440 is a wasteful number, since it uses less digits than its factorization.

55225535513440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345159596974 (or 345159596966 counting only the distinct ones).

The product of its (nonzero) digits is 9000000, while the sum is 49.

The spelling of 55225535513440 in words is "fifty-five trillion, two hundred twenty-five billion, five hundred thirty-five million, five hundred thirteen thousand, four hundred forty".