55087357392000 has 1792 divisors, whose sum is σ = 214049775420000. Its totient is φ = 14075331379200.

The previous prime is 55087357391981. The next prime is 55087357392049. The reversal of 55087357392000 is 29375378055.

55087357392000 is a `hidden beast` number, since 5 + 5 + 0 + 87 + 357 + 3 + 9 + 200 + 0 = 666.

It can be written as a sum of positive squares in 16 ways, for example, as 411270820416 + 54676086571584 = 641304^2 + 7394328^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 50400143454 + ... + 50400144546.

Almost surely, 2^{55087357392000} is an apocalyptic number.

55087357392000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55087357392000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107024887710000).

55087357392000 is an abundant number, since it is smaller than the sum of its proper divisors (158962418028000).

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

55087357392000 is a wasteful number, since it uses less digits than its factorization.

55087357392000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318 (or 1281 counting only the distinct ones).

The product of its (nonzero) digits is 7938000, while the sum is 54.

The spelling of 55087357392000 in words is "fifty-five trillion, eighty-seven billion, three hundred fifty-seven million, three hundred ninety-two thousand".