55055023632 has 120 divisors (see below), whose sum is σ = 176179348800. Its totient is φ = 15721908480.

The previous prime is 55055023609. The next prime is 55055023633. The reversal of 55055023632 is 23632055055.

55055023632 is a `hidden beast` number, since 5 + 50 + 550 + 23 + 6 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (55055023633) 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, 2102782 + ... + 2128802.

It is an arithmetic number, because the mean of its divisors is an integer number (1468161240).

Almost surely, 2^55055023632 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 55055023632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88089674400).

55055023632 is an abundant number, since it is smaller than the sum of its proper divisors (121124325168).

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

55055023632 is a wasteful number, since it uses less digits than its factorization.

55055023632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28141 (or 28132 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 36.

Adding to 55055023632 its reverse (23632055055), we get a palindrome (78687078687).

The spelling of 55055023632 in words is "fifty-five billion, fifty-five million, twenty-three thousand, six hundred thirty-two".