253204272485 has 4 divisors (see below), whose sum is σ = 303845126988. Its totient is φ = 202563417984.

The previous prime is 253204272457. The next prime is 253204272491. The reversal of 253204272485 is 584272402352.

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

It can be written as a sum of positive squares in 2 ways, for example, as 130692372196 + 122511900289 = 361514^2 + 350017^2 .

It is a cyclic number.

It is not a de Polignac number, because 253204272485 - 2¹² = 253204268389 is a prime.

It is a super-2 number, since 2×253204272485² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25320427244 + ... + 25320427253.

It is an arithmetic number, because the mean of its divisors is an integer number (75961281747).

Almost surely, 2^253204272485 is an apocalyptic number.

It is an amenable number.

253204272485 is a deficient number, since it is larger than the sum of its proper divisors (50640854503).

253204272485 is an equidigital number, since it uses as much as digits as its factorization.

253204272485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50640854502.

The product of its (nonzero) digits is 1075200, while the sum is 44.

The spelling of 253204272485 in words is "two hundred fifty-three billion, two hundred four million, two hundred seventy-two thousand, four hundred eighty-five".