53311238 has 4 divisors (see below), whose sum is σ = 79966860. Its totient is φ = 26655618.

The previous prime is 53311231. The next prime is 53311241. The reversal of 53311238 is 83211335.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53311231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13327808 + ... + 13327811.

It is an arithmetic number, because the mean of its divisors is an integer number (19991715).

Almost surely, 2^53311238 is an apocalyptic number.

53311238 is a deficient number, since it is larger than the sum of its proper divisors (26655622).

53311238 is a wasteful number, since it uses less digits than its factorization.

53311238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26655621.

The product of its digits is 2160, while the sum is 26.

The square root of 53311238 is about 7301.4545126297. The cubic root of 53311238 is about 376.3624231105.

The spelling of 53311238 in words is "fifty-three million, three hundred eleven thousand, two hundred thirty-eight".