53598391 has 8 divisors (see below), whose sum is σ = 66824064. Its totient is φ = 41764920.

The previous prime is 53598367. The next prime is 53598401. The reversal of 53598391 is 19389535.

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

It is a cyclic number.

It is not a de Polignac number, because 53598391 - 2⁵ = 53598359 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 (53598301) 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, 347965 + ... + 348118.

It is an arithmetic number, because the mean of its divisors is an integer number (8353008).

Almost surely, 2^53598391 is an apocalyptic number.

53598391 is a deficient number, since it is larger than the sum of its proper divisors (13225673).

53598391 is a wasteful number, since it uses less digits than its factorization.

53598391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696101.

The product of its digits is 145800, while the sum is 43.

The square root of 53598391 is about 7321.0921999385. The cubic root of 53598391 is about 377.0369534144.

Subtracting from 53598391 its reverse (19389535), we obtain a triangular number (34208856 = T₈₂₇₁).

The spelling of 53598391 in words is "fifty-three million, five hundred ninety-eight thousand, three hundred ninety-one".