253955479 has 4 divisors (see below), whose sum is σ = 254370376. Its totient is φ = 253540584.

The previous prime is 253955477. The next prime is 253955491. The reversal of 253955479 is 974559352.

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 253955479 - 2¹ = 253955477 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 (253955477) 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, 206529 + ... + 207754.

It is an arithmetic number, because the mean of its divisors is an integer number (63592594).

Almost surely, 2^253955479 is an apocalyptic number.

253955479 is a deficient number, since it is larger than the sum of its proper divisors (414897).

253955479 is an equidigital number, since it uses as much as digits as its factorization.

253955479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414896.

The product of its digits is 1701000, while the sum is 49.

The square root of 253955479 is about 15935.9806413035. The cubic root of 253955479 is about 633.2655493168.

The spelling of 253955479 in words is "two hundred fifty-three million, nine hundred fifty-five thousand, four hundred seventy-nine".