25493870941631 has 8 divisors (see below), whose sum is σ = 27027503981184. Its totient is φ = 24004691033760.

The previous prime is 25493870941549. The next prime is 25493870941657. The reversal of 25493870941631 is 13614907839452.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25493870941631 is a prime.

It is a super-2 number, since 2×25493870941631² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25493870941661) 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, 11113281740 + ... + 11113284033.

It is an arithmetic number, because the mean of its divisors is an integer number (3378437997648).

It is a 2-persistent number, because it is pandigital, and so is 2⋅25493870941631 = 50987741883262, but 3⋅25493870941631 = 76481612824893 is not.

Almost surely, 2^{25493870941631} is an apocalyptic number.

25493870941631 is a deficient number, since it is larger than the sum of its proper divisors (1533633039553).

25493870941631 is a wasteful number, since it uses less digits than its factorization.

25493870941631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22226565841.

The product of its (nonzero) digits is 39191040, while the sum is 62.

The spelling of 25493870941631 in words is "twenty-five trillion, four hundred ninety-three billion, eight hundred seventy million, nine hundred forty-one thousand, six hundred thirty-one".