53185238 has 16 divisors (see below), whose sum is σ = 82627776. Its totient is φ = 25657800.

The previous prime is 53185219. The next prime is 53185259. The reversal of 53185238 is 83258135.

It is a super-2 number, since 2×53185238² = 5657339082233288, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 53185198 and 53185207.

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, 3413 + ... + 10863.

It is an arithmetic number, because the mean of its divisors is an integer number (5164236).

Almost surely, 2^53185238 is an apocalyptic number.

53185238 is a deficient number, since it is larger than the sum of its proper divisors (29442538).

53185238 is a wasteful number, since it uses less digits than its factorization.

53185238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7579.

The product of its digits is 28800, while the sum is 35.

The square root of 53185238 is about 7292.8209905358. The cubic root of 53185238 is about 376.0656809584.

The spelling of 53185238 in words is "fifty-three million, one hundred eighty-five thousand, two hundred thirty-eight".