25252464717 has 32 divisors (see below), whose sum is σ = 39645936000. Its totient is φ = 15830993664.

The previous prime is 25252464709. The next prime is 25252464733. The reversal of 25252464717 is 71746425252.

25252464717 is a `hidden beast` number, since 2 + 52 + 524 + 6 + 4 + 71 + 7 = 666.

It is not a de Polignac number, because 25252464717 - 2³ = 25252464709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25252464317) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 521659 + ... + 568007.

It is an arithmetic number, because the mean of its divisors is an integer number (1238935500).

Almost surely, 2^25252464717 is an apocalyptic number.

25252464717 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

25252464717 is a deficient number, since it is larger than the sum of its proper divisors (14393471283).

25252464717 is a wasteful number, since it uses less digits than its factorization.

25252464717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47562 (or 47556 counting only the distinct ones).

The product of its digits is 940800, while the sum is 45.

Adding to 25252464717 its reverse (71746425252), we get a palindrome (96998889969).

The spelling of 25252464717 in words is "twenty-five billion, two hundred fifty-two million, four hundred sixty-four thousand, seven hundred seventeen".