25948252649931 has 8 divisors (see below), whose sum is σ = 34826793844224. Its totient is φ = 17184273277800.

The previous prime is 25948252649923. The next prime is 25948252649941. The reversal of 25948252649931 is 13994625284952.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25948252649931 - 2³ = 25948252649923 is a prime.

It is a super-2 number, since 2×25948252649931² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25948252649941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28640455011 + ... + 28640455916.

It is an arithmetic number, because the mean of its divisors is an integer number (4353349230528).

Almost surely, 2^{25948252649931} is an apocalyptic number.

25948252649931 is a deficient number, since it is larger than the sum of its proper divisors (8878541194293).

25948252649931 is a wasteful number, since it uses less digits than its factorization.

25948252649931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57280911081.

The product of its digits is 335923200, while the sum is 69.

The spelling of 25948252649931 in words is "twenty-five trillion, nine hundred forty-eight billion, two hundred fifty-two million, six hundred forty-nine thousand, nine hundred thirty-one".