53208539 has 4 divisors (see below), whose sum is σ = 53304624. Its totient is φ = 53112456.

The previous prime is 53208527. The next prime is 53208577. The reversal of 53208539 is 93580235.

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 53208539 - 2⁴ = 53208523 is a prime.

It is a super-2 number, since 2×53208539² = 5662297245029042, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53208499 and 53208508.

It is not an unprimeable number, because it can be changed into a prime (53208599) 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, 47207 + ... + 48320.

It is an arithmetic number, because the mean of its divisors is an integer number (13326156).

Almost surely, 2^53208539 is an apocalyptic number.

53208539 is a deficient number, since it is larger than the sum of its proper divisors (96085).

53208539 is an equidigital number, since it uses as much as digits as its factorization.

53208539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96084.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 53208539 is about 7294.4183455571. The cubic root of 53208539 is about 376.1205923549.

The spelling of 53208539 in words is "fifty-three million, two hundred eight thousand, five hundred thirty-nine".