25222501672 has 16 divisors (see below), whose sum is σ = 49781253600. Its totient is φ = 11947500720.

The previous prime is 25222501657. The next prime is 25222501679. The reversal of 25222501672 is 27610522252.

It is not an unprimeable number, because it can be changed into a prime (25222501679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82968604 + ... + 82968907.

It is an arithmetic number, because the mean of its divisors is an integer number (3111328350).

Almost surely, 2^25222501672 is an apocalyptic number.

It is an amenable number.

25222501672 is a deficient number, since it is larger than the sum of its proper divisors (24558751928).

25222501672 is a wasteful number, since it uses less digits than its factorization.

25222501672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165937536 (or 165937532 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The spelling of 25222501672 in words is "twenty-five billion, two hundred twenty-two million, five hundred one thousand, six hundred seventy-two".