55131749487360 has 3456 divisors, whose sum is σ = 251189325004800. Its totient is φ = 11503730294784.

The previous prime is 55131749487341. The next prime is 55131749487439. The reversal of 55131749487360 is 6378494713155.

55131749487360 is a `hidden beast` number, since 5 + 5 + 1 + 3 + 1 + 7 + 494 + 87 + 3 + 60 = 666.

It is a tau number, because it is divible by the number of its divisors (3456).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 176139774564 + ... + 176139774876.

Almost surely, 2^{55131749487360} 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 55131749487360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125594662502400).

55131749487360 is an abundant number, since it is smaller than the sum of its proper divisors (196057575517440).

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

55131749487360 is a wasteful number, since it uses less digits than its factorization.

55131749487360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 76204800, while the sum is 63.

The spelling of 55131749487360 in words is "fifty-five trillion, one hundred thirty-one billion, seven hundred forty-nine million, four hundred eighty-seven thousand, three hundred sixty".