53855239 has 16 divisors (see below), whose sum is σ = 56869888. Its totient is φ = 50948352.

The previous prime is 53855231. The next prime is 53855267. The reversal of 53855239 is 93255835.

It is a cyclic number.

It is not a de Polignac number, because 53855239 - 2³ = 53855231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53855231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342949 + ... + 343105.

It is an arithmetic number, because the mean of its divisors is an integer number (3554368).

Almost surely, 2^53855239 is an apocalyptic number.

53855239 is a deficient number, since it is larger than the sum of its proper divisors (3014649).

53855239 is a wasteful number, since it uses less digits than its factorization.

53855239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394.

The product of its digits is 162000, while the sum is 40.

The square root of 53855239 is about 7338.6128798295. The cubic root of 53855239 is about 377.6382582033.

The spelling of 53855239 in words is "fifty-three million, eight hundred fifty-five thousand, two hundred thirty-nine".