253602439 has 4 divisors (see below), whose sum is σ = 264628656. Its totient is φ = 242576224.

The previous prime is 253602421. The next prime is 253602449. The reversal of 253602439 is 934206352.

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 253602439 - 2²⁵ = 220048007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253602449) 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, 5513074 + ... + 5513119.

It is an arithmetic number, because the mean of its divisors is an integer number (66157164).

Almost surely, 2^253602439 is an apocalyptic number.

253602439 is a deficient number, since it is larger than the sum of its proper divisors (11026217).

253602439 is a wasteful number, since it uses less digits than its factorization.

253602439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11026216.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 253602439 is about 15924.8999682887. The cubic root of 253602439 is about 632.9719653792.

The spelling of 253602439 in words is "two hundred fifty-three million, six hundred two thousand, four hundred thirty-nine".