25958691222 has 16 divisors (see below), whose sum is σ = 51920901120. Its totient is φ = 8652310632.

The previous prime is 25958691221. The next prime is 25958691289. The reversal of 25958691222 is 22219685952.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25958691221) 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, 45322 + ... + 232317.

It is an arithmetic number, because the mean of its divisors is an integer number (3245056320).

Almost surely, 2^25958691222 is an apocalyptic number.

25958691222 is an abundant number, since it is smaller than the sum of its proper divisors (25962209898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25958691222 is a wasteful number, since it uses less digits than its factorization.

25958691222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293227.

The product of its digits is 1555200, while the sum is 51.

The spelling of 25958691222 in words is "twenty-five billion, nine hundred fifty-eight million, six hundred ninety-one thousand, two hundred twenty-two".