253579 has 4 divisors (see below), whose sum is σ = 254880. Its totient is φ = 252280.

The previous prime is 253573. The next prime is 253601. The reversal of 253579 is 975352.

It is a happy number.

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 253579 - 2¹⁵ = 220811 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 253579.

It is not an unprimeable number, because it can be changed into a prime (253573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292 + ... + 769.

It is an arithmetic number, because the mean of its divisors is an integer number (63720).

2²⁵³⁵⁷⁹ is an apocalyptic number.

253579 is a deficient number, since it is larger than the sum of its proper divisors (1301).

253579 is a wasteful number, since it uses less digits than its factorization.

253579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300.

The product of its digits is 9450, while the sum is 31.

The square root of 253579 is about 503.5662816353. The cubic root of 253579 is about 63.2952464138.

The spelling of 253579 in words is "two hundred fifty-three thousand, five hundred seventy-nine".