55333861632 has 216 divisors, whose sum is σ = 183072576960. Its totient is φ = 15745536000.

The previous prime is 55333861631. The next prime is 55333861657. The reversal of 55333861632 is 23616833355.

55333861632 is a `hidden beast` number, since 5 + 5 + 3 + 3 + 3 + 8 + 6 + 1 + 632 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (55333861631) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4041294 + ... + 4054962.

Almost surely, 2^55333861632 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 55333861632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91536288480).

55333861632 is an abundant number, since it is smaller than the sum of its proper divisors (127738715328).

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

55333861632 is a wasteful number, since it uses less digits than its factorization.

55333861632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13949 (or 13932 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 45.

The spelling of 55333861632 in words is "fifty-five billion, three hundred thirty-three million, eight hundred sixty-one thousand, six hundred thirty-two".