252742247253 has 6 divisors (see below), whose sum is σ = 365072134934. Its totient is φ = 168494831496.

The previous prime is 252742247213. The next prime is 252742247327. The reversal of 252742247253 is 352742247252.

252742247253 is a `hidden beast` number, since 2 + 527 + 4 + 2 + 2 + 4 + 72 + 53 = 666.

It can be written as a sum of positive squares in only one way, i.e., 250778605284 + 1963641969 = 500778^2 + 44313^2 .

It is not a de Polignac number, because 252742247253 - 2⁶ = 252742247189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252742247199 and 252742247208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252742247213) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14041235950 + ... + 14041235967.

Almost surely, 2^252742247253 is an apocalyptic number.

It is an amenable number.

252742247253 is a deficient number, since it is larger than the sum of its proper divisors (112329887681).

252742247253 is a wasteful number, since it uses less digits than its factorization.

252742247253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28082471923 (or 28082471920 counting only the distinct ones).

The product of its digits is 1881600, while the sum is 45.

Subtracting 252742247253 from its reverse (352742247252), we obtain a palindrome (99999999999).

The spelling of 252742247253 in words is "two hundred fifty-two billion, seven hundred forty-two million, two hundred forty-seven thousand, two hundred fifty-three".