53118138 has 16 divisors (see below), whose sum is σ = 106471296. Its totient is φ = 17666880.

The previous prime is 53118127. The next prime is 53118139. The reversal of 53118138 is 83181135.

It is not an unprimeable number, because it can be changed into a prime (53118139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6783 + ... + 12338.

It is an arithmetic number, because the mean of its divisors is an integer number (6654456).

Almost surely, 2^53118138 is an apocalyptic number.

53118138 is an abundant number, since it is smaller than the sum of its proper divisors (53353158).

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

53118138 is a wasteful number, since it uses less digits than its factorization.

53118138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19589.

The product of its digits is 2880, while the sum is 30.

The square root of 53118138 is about 7288.2191240385. The cubic root of 53118138 is about 375.9074627036.

The spelling of 53118138 in words is "fifty-three million, one hundred eighteen thousand, one hundred thirty-eight".