55223939232 has 324 divisors, whose sum is σ = 200806270938. Its totient is φ = 14343436800.

The previous prime is 55223939203. The next prime is 55223939269. The reversal of 55223939232 is 23293932255.

55223939232 is a `hidden beast` number, since 5 + 5 + 22 + 393 + 9 + 232 = 666.

It can be written as a sum of positive squares in only one way, i.e., 53788741776 + 1435197456 = 231924^2 + 37884^2 .

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 53 ways as a sum of consecutive naturals, for example, 1691382 + ... + 1723722.

Almost surely, 2^55223939232 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 55223939232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100403135469).

55223939232 is an abundant number, since it is smaller than the sum of its proper divisors (145582331706).

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

55223939232 is a wasteful number, since it uses less digits than its factorization.

55223939232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32393 (or 32364 counting only the distinct ones).

The product of its digits is 874800, while the sum is 45.

The spelling of 55223939232 in words is "fifty-five billion, two hundred twenty-three million, nine hundred thirty-nine thousand, two hundred thirty-two".