53138113 has 4 divisors (see below), whose sum is σ = 60729280. Its totient is φ = 45546948.

The previous prime is 53138101. The next prime is 53138131. The reversal of 53138113 is 31183135.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31183135 = 5 ⋅6236627.

It is a cyclic number.

It is not a de Polignac number, because 53138113 - 2⁵ = 53138081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53138143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3795573 + ... + 3795586.

It is an arithmetic number, because the mean of its divisors is an integer number (15182320).

Almost surely, 2^53138113 is an apocalyptic number.

It is an amenable number.

53138113 is a deficient number, since it is larger than the sum of its proper divisors (7591167).

53138113 is an equidigital number, since it uses as much as digits as its factorization.

53138113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7591166.

The product of its digits is 1080, while the sum is 25.

The square root of 53138113 is about 7289.5893574330. The cubic root of 53138113 is about 375.9545766201.

The spelling of 53138113 in words is "fifty-three million, one hundred thirty-eight thousand, one hundred thirteen".