55436608980 has 120 divisors (see below), whose sum is σ = 175446272232. Its totient is φ = 14652223488.

The previous prime is 55436608967. The next prime is 55436608999. The reversal of 55436608980 is 8980663455.

It is a happy number.

55436608980 is a `hidden beast` number, since 5 + 543 + 6 + 6 + 0 + 8 + 98 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5021989956 + 50414619024 = 70866^2 + 224532^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 31644 + ... + 334476.

Almost surely, 2^55436608980 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 55436608980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87723136116).

55436608980 is an abundant number, since it is smaller than the sum of its proper divisors (120009663252).

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

55436608980 is a wasteful number, since it uses less digits than its factorization.

55436608980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302967 (or 302956 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 55436608980 in words is "fifty-five billion, four hundred thirty-six million, six hundred eight thousand, nine hundred eighty".