53897593 has 4 divisors (see below), whose sum is σ = 53936740. Its totient is φ = 53858448.

The previous prime is 53897563. The next prime is 53897603. The reversal of 53897593 is 39579835.

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

It can be written as a sum of positive squares in 2 ways, for example, as 31505769 + 22391824 = 5613^2 + 4732^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53897593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53897563) 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, 17430 + ... + 20287.

It is an arithmetic number, because the mean of its divisors is an integer number (13484185).

Almost surely, 2^53897593 is an apocalyptic number.

It is an amenable number.

53897593 is a deficient number, since it is larger than the sum of its proper divisors (39147).

53897593 is a wasteful number, since it uses less digits than its factorization.

53897593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39146.

The product of its digits is 1020600, while the sum is 49.

The square root of 53897593 is about 7341.4980079000. The cubic root of 53897593 is about 377.7372290741.

The spelling of 53897593 in words is "fifty-three million, eight hundred ninety-seven thousand, five hundred ninety-three".