253539 has 24 divisors (see below), whose sum is σ = 432432. Its totient is φ = 141120.

The previous prime is 253537. The next prime is 253543. The reversal of 253539 is 935352.

It is not a de Polignac number, because 253539 - 2¹ = 253537 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 253539.

It is not an unprimeable number, because it can be changed into a prime (253531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1189 + ... + 1385.

It is an arithmetic number, because the mean of its divisors is an integer number (18018).

2²⁵³⁵³⁹ is an apocalyptic number.

253539 is a deficient number, since it is larger than the sum of its proper divisors (178893).

253539 is a wasteful number, since it uses less digits than its factorization.

253539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227 (or 224 counting only the distinct ones).

The product of its digits is 4050, while the sum is 27.

The square root of 253539 is about 503.5265633509. The cubic root of 253539 is about 63.2919181374.

The spelling of 253539 in words is "two hundred fifty-three thousand, five hundred thirty-nine".