25241530431 has 8 divisors (see below), whose sum is σ = 36244248880. Its totient is φ = 15533249472.

The previous prime is 25241530399. The next prime is 25241530439. The reversal of 25241530431 is 13403514252.

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

It is not a de Polignac number, because 25241530431 - 2⁵ = 25241530399 is a prime.

It is a super-2 number, since 2×25241530431² (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 (25241530439) 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, 323609326 + ... + 323609403.

It is an arithmetic number, because the mean of its divisors is an integer number (4530531110).

Almost surely, 2^25241530431 is an apocalyptic number.

25241530431 is a deficient number, since it is larger than the sum of its proper divisors (11002718449).

25241530431 is a wasteful number, since it uses less digits than its factorization.

25241530431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647218745.

The product of its (nonzero) digits is 14400, while the sum is 30.

The spelling of 25241530431 in words is "twenty-five billion, two hundred forty-one million, five hundred thirty thousand, four hundred thirty-one".