53393591 has 8 divisors (see below), whose sum is σ = 56324400. Its totient is φ = 50474880.

The previous prime is 53393579. The next prime is 53393609. The reversal of 53393591 is 19539335.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53393591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53393531) 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, 6911 + ... + 12431.

It is an arithmetic number, because the mean of its divisors is an integer number (7040550).

Almost surely, 2^53393591 is an apocalyptic number.

53393591 is a deficient number, since it is larger than the sum of its proper divisors (2930809).

53393591 is a wasteful number, since it uses less digits than its factorization.

53393591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6049.

The product of its digits is 54675, while the sum is 38.

The square root of 53393591 is about 7307.0918291753. The cubic root of 53393591 is about 376.5561197854.

The spelling of 53393591 in words is "fifty-three million, three hundred ninety-three thousand, five hundred ninety-one".