55595992380 has 96 divisors (see below), whose sum is σ = 163513340928. Its totient is φ = 14087040000.

The previous prime is 55595992373. The next prime is 55595992453. The reversal of 55595992380 is 8329959555.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74980 + ... + 341780.

It is an arithmetic number, because the mean of its divisors is an integer number (1703263968).

Almost surely, 2^55595992380 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 55595992380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81756670464).

55595992380 is an abundant number, since it is smaller than the sum of its proper divisors (107917348548).

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

55595992380 is a wasteful number, since it uses less digits than its factorization.

55595992380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266987 (or 266985 counting only the distinct ones).

The product of its (nonzero) digits is 21870000, while the sum is 60.

The spelling of 55595992380 in words is "fifty-five billion, five hundred ninety-five million, nine hundred ninety-two thousand, three hundred eighty".