55685048832 has 240 divisors, whose sum is σ = 191745227520. Its totient is φ = 15909820416.

The previous prime is 55685048821. The next prime is 55685048851. The reversal of 55685048832 is 23884058655.

55685048832 is a `hidden beast` number, since 5 + 56 + 8 + 504 + 8 + 83 + 2 = 666.

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 23 ways as a sum of consecutive naturals, for example, 636273 + ... + 718479.

It is an arithmetic number, because the mean of its divisors is an integer number (798938448).

Almost surely, 2^55685048832 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 55685048832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95872613760).

55685048832 is an abundant number, since it is smaller than the sum of its proper divisors (136060178688).

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

55685048832 is an equidigital number, since it uses as much as digits as its factorization.

55685048832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82248 (or 82219 counting only the distinct ones).

The product of its (nonzero) digits is 9216000, while the sum is 54.

The spelling of 55685048832 in words is "fifty-five billion, six hundred eighty-five million, forty-eight thousand, eight hundred thirty-two".