55153223136 has 192 divisors, whose sum is σ = 176229043200. Its totient is φ = 16642483200.

The previous prime is 55153223077. The next prime is 55153223243. The reversal of 55153223136 is 63132235155.

55153223136 is a `hidden beast` number, since 5 + 5 + 15 + 322 + 313 + 6 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 55153223136.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2259316 + ... + 2283596.

It is an arithmetic number, because the mean of its divisors is an integer number (917859600).

Almost surely, 2^55153223136 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 55153223136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88114521600).

55153223136 is an abundant number, since it is smaller than the sum of its proper divisors (121075820064).

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

55153223136 is a wasteful number, since it uses less digits than its factorization.

55153223136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24550 (or 24536 counting only the distinct ones).

The product of its digits is 81000, while the sum is 36.

The spelling of 55153223136 in words is "fifty-five billion, one hundred fifty-three million, two hundred twenty-three thousand, one hundred thirty-six".