25830657231 has 8 divisors (see below), whose sum is σ = 34745663280. Its totient is φ = 17068044672.

The previous prime is 25830657221. The next prime is 25830657239. The reversal of 25830657231 is 13275603852.

It is a happy number.

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

It is not a de Polignac number, because 25830657231 - 2¹¹ = 25830655183 is a prime.

It is a super-2 number, since 2×25830657231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25830657239) 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, 38097976 + ... + 38098653.

It is an arithmetic number, because the mean of its divisors is an integer number (4343207910).

Almost surely, 2^25830657231 is an apocalyptic number.

25830657231 is a deficient number, since it is larger than the sum of its proper divisors (8915006049).

25830657231 is a wasteful number, since it uses less digits than its factorization.

25830657231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76196745.

The product of its (nonzero) digits is 302400, while the sum is 42.

The spelling of 25830657231 in words is "twenty-five billion, eight hundred thirty million, six hundred fifty-seven thousand, two hundred thirty-one".