55220131400352 has 48 divisors (see below), whose sum is σ = 145125613725120. Its totient is φ = 18384771571712.

The previous prime is 55220131400347. The next prime is 55220131400381. The reversal of 55220131400352 is 25300413102255.

It is a tau number, because it is divible by the number of its divisors (48).

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 7 ways as a sum of consecutive naturals, for example, 342714273 + ... + 342875360.

It is an arithmetic number, because the mean of its divisors is an integer number (3023450285940).

Almost surely, 2^{55220131400352} is an apocalyptic number.

It is an amenable number.

55220131400352 is an abundant number, since it is smaller than the sum of its proper divisors (89905482324768).

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

55220131400352 is a wasteful number, since it uses less digits than its factorization.

55220131400352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685590485 (or 685590477 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The spelling of 55220131400352 in words is "fifty-five trillion, two hundred twenty billion, one hundred thirty-one million, four hundred thousand, three hundred fifty-two".