25113249631 has 8 divisors (see below), whose sum is σ = 25211555424. Its totient is φ = 25015110240.

The previous prime is 25113249619. The next prime is 25113249653. The reversal of 25113249631 is 13694231152.

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

It is a cyclic number.

It is not a de Polignac number, because 25113249631 - 2⁵ = 25113249599 is a prime.

It is a super-2 number, since 2×25113249631² (a number of 22 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 (25113249661) 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 7 ways as a sum of consecutive naturals, for example, 265230 + ... + 347236.

It is an arithmetic number, because the mean of its divisors is an integer number (3151444428).

Almost surely, 2^25113249631 is an apocalyptic number.

25113249631 is a deficient number, since it is larger than the sum of its proper divisors (98305793).

25113249631 is an equidigital number, since it uses as much as digits as its factorization.

25113249631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83201.

The product of its digits is 38880, while the sum is 37.

It can be divided in two parts, 251132 and 49631, that added together give a cube (300763 = 67³).

The spelling of 25113249631 in words is "twenty-five billion, one hundred thirteen million, two hundred forty-nine thousand, six hundred thirty-one".