53165539 has 6 divisors (see below), whose sum is σ = 61845684. Its totient is φ = 45570420.

The previous prime is 53165537. The next prime is 53165557. The reversal of 53165539 is 93556135.

It is not a de Polignac number, because 53165539 - 2¹ = 53165537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53165498 and 53165507.

It is not an unprimeable number, because it can be changed into a prime (53165531) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 542457 + ... + 542554.

It is an arithmetic number, because the mean of its divisors is an integer number (10307614).

Almost surely, 2^53165539 is an apocalyptic number.

53165539 is a deficient number, since it is larger than the sum of its proper divisors (8680145).

53165539 is a wasteful number, since it uses less digits than its factorization.

53165539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085025 (or 1085018 counting only the distinct ones).

The product of its digits is 60750, while the sum is 37.

The square root of 53165539 is about 7291.4702906890. The cubic root of 53165539 is about 376.0192455631.

The spelling of 53165539 in words is "fifty-three million, one hundred sixty-five thousand, five hundred thirty-nine".