53723136 has 60 divisors (see below), whose sum is σ = 143388392. Its totient is φ = 17891328.

The previous prime is 53723129. The next prime is 53723183. The reversal of 53723136 is 63132735.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48606 + ... + 49698.

Almost surely, 2^53723136 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 53723136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71694196).

53723136 is an abundant number, since it is smaller than the sum of its proper divisors (89665256).

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

53723136 is an equidigital number, since it uses as much as digits as its factorization.

53723136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124 (or 1098 counting only the distinct ones).

The product of its digits is 11340, while the sum is 30.

The square root of 53723136 is about 7329.6068107368. The cubic root of 53723136 is about 377.3292322956.

The spelling of 53723136 in words is "fifty-three million, seven hundred twenty-three thousand, one hundred thirty-six".