25252267115639 has 4 divisors (see below), whose sum is σ = 25254730040856. Its totient is φ = 25249804190424.

The previous prime is 25252267115557. The next prime is 25252267115687. The reversal of 25252267115639 is 93651176225252.

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

It is a cyclic number.

It is not a de Polignac number, because 25252267115639 - 2³⁶ = 25183547638903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25252267115039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1231447229 + ... + 1231467734.

It is an arithmetic number, because the mean of its divisors is an integer number (6313682510214).

Almost surely, 2^{25252267115639} is an apocalyptic number.

25252267115639 is a deficient number, since it is larger than the sum of its proper divisors (2462925217).

25252267115639 is a wasteful number, since it uses less digits than its factorization.

25252267115639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2462925216.

The product of its digits is 13608000, while the sum is 56.

The spelling of 25252267115639 in words is "twenty-five trillion, two hundred fifty-two billion, two hundred sixty-seven million, one hundred fifteen thousand, six hundred thirty-nine".