53055521136 has 120 divisors (see below), whose sum is σ = 157283549280. Its totient is φ = 16637718528.

The previous prime is 53055521107. The next prime is 53055521159. The reversal of 53055521136 is 63112555035.

53055521136 is a `hidden beast` number, since 53 + 0 + 55 + 521 + 1 + 36 = 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 53055521136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11216820 + ... + 11221548.

It is an arithmetic number, because the mean of its divisors is an integer number (1310696244).

Almost surely, 2^53055521136 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 53055521136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78641774640).

53055521136 is an abundant number, since it is smaller than the sum of its proper divisors (104228028144).

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

53055521136 is a wasteful number, since it uses less digits than its factorization.

53055521136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9343 (or 9334 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 36.

The spelling of 53055521136 in words is "fifty-three billion, fifty-five million, five hundred twenty-one thousand, one hundred thirty-six".