53604839 has 4 divisors (see below), whose sum is σ = 53627400. Its totient is φ = 53582280.

The previous prime is 53604821. The next prime is 53604851. The reversal of 53604839 is 93840635.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53604839 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53604869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7232 + ... + 12629.

It is an arithmetic number, because the mean of its divisors is an integer number (13406850).

Almost surely, 2^53604839 is an apocalyptic number.

53604839 is a deficient number, since it is larger than the sum of its proper divisors (22561).

53604839 is a wasteful number, since it uses less digits than its factorization.

53604839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22560.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 53604839 is about 7321.5325581466. The cubic root of 53604839 is about 377.0520722563.

The spelling of 53604839 in words is "fifty-three million, six hundred four thousand, eight hundred thirty-nine".