1253479355 has 4 divisors (see below), whose sum is σ = 1504175232. Its totient is φ = 1002783480.

The previous prime is 1253479351. The next prime is 1253479379. The reversal of 1253479355 is 5539743521.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1253479355 - 2² = 1253479351 is a prime.

It is a super-2 number, since 2×1253479355² = 3142420986822432050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1253479351) 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, 125347931 + ... + 125347940.

It is an arithmetic number, because the mean of its divisors is an integer number (376043808).

Almost surely, 2^1253479355 is an apocalyptic number.

1253479355 is a deficient number, since it is larger than the sum of its proper divisors (250695877).

1253479355 is an equidigital number, since it uses as much as digits as its factorization.

1253479355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250695876.

The product of its digits is 567000, while the sum is 44.

The square root of 1253479355 is about 35404.5103765043. The cubic root of 1253479355 is about 1078.2158915236.

The spelling of 1253479355 in words is "one billion, two hundred fifty-three million, four hundred seventy-nine thousand, three hundred fifty-five".