53813838 has 16 divisors (see below), whose sum is σ = 115906896. Its totient is φ = 16558080.

The previous prime is 53813819. The next prime is 53813843. The reversal of 53813838 is 83831835.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 53813796 and 53813805.

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, 344883 + ... + 345038.

It is an arithmetic number, because the mean of its divisors is an integer number (7244181).

Almost surely, 2^53813838 is an apocalyptic number.

53813838 is an abundant number, since it is smaller than the sum of its proper divisors (62093058).

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

53813838 is a wasteful number, since it uses less digits than its factorization.

53813838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689939.

The product of its digits is 69120, while the sum is 39.

The square root of 53813838 is about 7335.7915728298. The cubic root of 53813838 is about 377.5414640945.

The spelling of 53813838 in words is "fifty-three million, eight hundred thirteen thousand, eight hundred thirty-eight".