253213420265 has 8 divisors (see below), whose sum is σ = 327229650888. Its totient is φ = 186988371840.

The previous prime is 253213420249. The next prime is 253213420357. The reversal of 253213420265 is 562024312352.

It can be written as a sum of positive squares in 4 ways, for example, as 2385736336 + 250827683929 = 48844^2 + 500827^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 253213420265 - 2⁴ = 253213420249 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1947795476 + ... + 1947795605.

It is an arithmetic number, because the mean of its divisors is an integer number (40903706361).

Almost surely, 2^253213420265 is an apocalyptic number.

It is an amenable number.

253213420265 is a deficient number, since it is larger than the sum of its proper divisors (74016230623).

253213420265 is a wasteful number, since it uses less digits than its factorization.

253213420265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3895591099.

The product of its (nonzero) digits is 86400, while the sum is 35.

The spelling of 253213420265 in words is "two hundred fifty-three billion, two hundred thirteen million, four hundred twenty thousand, two hundred sixty-five".