653253279 has 16 divisors (see below), whose sum is σ = 995976960. Its totient is φ = 373083840.

The previous prime is 653253253. The next prime is 653253281. The reversal of 653253279 is 972352356.

It is not a de Polignac number, because 653253279 - 2⁵ = 653253247 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 653253279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653253239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36424 + ... + 51314.

It is an arithmetic number, because the mean of its divisors is an integer number (62248560).

Almost surely, 2^653253279 is an apocalyptic number.

653253279 is a deficient number, since it is larger than the sum of its proper divisors (342723681).

653253279 is a wasteful number, since it uses less digits than its factorization.

653253279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16990.

The product of its digits is 340200, while the sum is 42.

The square root of 653253279 is about 25558.8199844985. The cubic root of 653253279 is about 867.6818894018.

The spelling of 653253279 in words is "six hundred fifty-three million, two hundred fifty-three thousand, two hundred seventy-nine".