55051320048390 has 128 divisors (see below), whose sum is σ = 146914773880320. Its totient is φ = 14669231186304.

The previous prime is 55051320048349. The next prime is 55051320048401. The reversal of 55051320048390 is 9384002315055.

55051320048390 is a `hidden beast` number, since 5 + 5 + 0 + 5 + 13 + 200 + 48 + 390 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 63 ways as a sum of consecutive naturals, for example, 2122815864 + ... + 2122841796.

It is an arithmetic number, because the mean of its divisors is an integer number (1147771670940).

Almost surely, 2^{55051320048390} is an apocalyptic number.

55051320048390 is an abundant number, since it is smaller than the sum of its proper divisors (91863453831930).

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

55051320048390 is a wasteful number, since it uses less digits than its factorization.

55051320048390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31603 (or 31597 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The spelling of 55051320048390 in words is "fifty-five trillion, fifty-one billion, three hundred twenty million, forty-eight thousand, three hundred ninety".