55359185232 has 160 divisors (see below), whose sum is σ = 164540024320. Its totient is φ = 15896010240.

The previous prime is 55359185207. The next prime is 55359185257. The reversal of 55359185232 is 23258195355.

It is an interprime number because it is at equal distance from previous prime (55359185207) and next prime (55359185257).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 759507 + ... + 829197.

It is an arithmetic number, because the mean of its divisors is an integer number (1028375152).

Almost surely, 2^55359185232 is an apocalyptic number.

55359185232 is a gapful number since it is divisible by the number (52) 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 55359185232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82270012160).

55359185232 is an abundant number, since it is smaller than the sum of its proper divisors (109180839088).

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

55359185232 is a wasteful number, since it uses less digits than its factorization.

55359185232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69801 (or 69795 counting only the distinct ones).

The product of its digits is 1620000, while the sum is 48.

The spelling of 55359185232 in words is "fifty-five billion, three hundred fifty-nine million, one hundred eighty-five thousand, two hundred thirty-two".