53257839 has 8 divisors (see below), whose sum is σ = 71111040. Its totient is φ = 35454936.

The previous prime is 53257829. The next prime is 53257847. The reversal of 53257839 is 93875235.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53257839 - 2⁴ = 53257823 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53257839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53257829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10029 + ... + 14390.

It is an arithmetic number, because the mean of its divisors is an integer number (8888880).

Almost surely, 2^53257839 is an apocalyptic number.

53257839 is a deficient number, since it is larger than the sum of its proper divisors (17853201).

53257839 is a wasteful number, since it uses less digits than its factorization.

53257839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25149.

The product of its digits is 226800, while the sum is 42.

The square root of 53257839 is about 7297.7968593268. The cubic root of 53257839 is about 376.2367204652.

The spelling of 53257839 in words is "fifty-three million, two hundred fifty-seven thousand, eight hundred thirty-nine".