53557241136 has 160 divisors (see below), whose sum is σ = 160784613888. Its totient is φ = 15045212160.

The previous prime is 53557241131. The next prime is 53557241147. The reversal of 53557241136 is 63114275535.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (53557241131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13797916 + ... + 13801796.

Almost surely, 2^53557241136 is an apocalyptic number.

53557241136 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53557241136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80392306944).

53557241136 is an abundant number, since it is smaller than the sum of its proper divisors (107227372752).

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

53557241136 is a wasteful number, since it uses less digits than its factorization.

53557241136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4579 (or 4573 counting only the distinct ones).

The product of its digits is 378000, while the sum is 42.

The spelling of 53557241136 in words is "fifty-three billion, five hundred fifty-seven million, two hundred forty-one thousand, one hundred thirty-six".