55332439976 has 64 divisors (see below), whose sum is σ = 114317438400. Its totient is φ = 24898752000.

The previous prime is 55332439973. The next prime is 55332439991. The reversal of 55332439976 is 67993423355.

It is not an unprimeable number, because it can be changed into a prime (55332439973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17273591 + ... + 17276793.

It is an arithmetic number, because the mean of its divisors is an integer number (1786209975).

Almost surely, 2^55332439976 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 55332439976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57158719200).

55332439976 is an abundant number, since it is smaller than the sum of its proper divisors (58984998424).

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

55332439976 is a wasteful number, since it uses less digits than its factorization.

55332439976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5130 (or 5126 counting only the distinct ones).

The product of its digits is 18370800, while the sum is 56.

The spelling of 55332439976 in words is "fifty-five billion, three hundred thirty-two million, four hundred thirty-nine thousand, nine hundred seventy-six".