53598139 has 4 divisors (see below), whose sum is σ = 61255024. Its totient is φ = 45941256.

The previous prime is 53598091. The next prime is 53598143. The reversal of 53598139 is 93189535.

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

It is a cyclic number.

It is not a de Polignac number, because 53598139 - 2⁹ = 53597627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53598095 and 53598104.

It is not an unprimeable number, because it can be changed into a prime (53598239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3828432 + ... + 3828445.

It is an arithmetic number, because the mean of its divisors is an integer number (15313756).

Almost surely, 2^53598139 is an apocalyptic number.

53598139 is a deficient number, since it is larger than the sum of its proper divisors (7656885).

53598139 is an equidigital number, since it uses as much as digits as its factorization.

53598139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7656884.

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

The square root of 53598139 is about 7321.0749893714. The cubic root of 53598139 is about 377.0363625169.

The spelling of 53598139 in words is "fifty-three million, five hundred ninety-eight thousand, one hundred thirty-nine".