53438838 has 16 divisors (see below), whose sum is σ = 107117040. Its totient is φ = 17773056.

The previous prime is 53438813. The next prime is 53438873. The reversal of 53438838 is 83883435.

It is a self number, because there is not a number n which added to its sum of digits gives 53438838.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7003 + ... + 12486.

It is an arithmetic number, because the mean of its divisors is an integer number (6694815).

Almost surely, 2^53438838 is an apocalyptic number.

53438838 is an abundant number, since it is smaller than the sum of its proper divisors (53678202).

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

53438838 is a wasteful number, since it uses less digits than its factorization.

53438838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19951.

The product of its digits is 276480, while the sum is 42.

The square root of 53438838 is about 7310.1872753029. The cubic root of 53438838 is about 376.6624572932.

The spelling of 53438838 in words is "fifty-three million, four hundred thirty-eight thousand, eight hundred thirty-eight".