25242162507 has 6 divisors (see below), whose sum is σ = 36460901412. Its totient is φ = 16828108332.

The previous prime is 25242162499. The next prime is 25242162509. The reversal of 25242162507 is 70526124252.

25242162507 is a `hidden beast` number, since 2 + 5 + 2 + 4 + 21 + 625 + 0 + 7 = 666.

It is not a de Polignac number, because 25242162507 - 2³ = 25242162499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25242162509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1402342353 + ... + 1402342370.

It is an arithmetic number, because the mean of its divisors is an integer number (6076816902).

Almost surely, 2^25242162507 is an apocalyptic number.

25242162507 is a deficient number, since it is larger than the sum of its proper divisors (11218738905).

25242162507 is a wasteful number, since it uses less digits than its factorization.

25242162507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2804684729 (or 2804684726 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

Adding to 25242162507 its reverse (70526124252), we get a palindrome (95768286759).

The spelling of 25242162507 in words is "twenty-five billion, two hundred forty-two million, one hundred sixty-two thousand, five hundred seven".