25860438222 has 16 divisors (see below), whose sum is σ = 51797735760. Its totient is φ = 8607336192.

The previous prime is 25860438211. The next prime is 25860438223. The reversal of 25860438222 is 22283406852.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25860438223) 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, 3198097 + ... + 3206172.

It is an arithmetic number, because the mean of its divisors is an integer number (3237358485).

Almost surely, 2^25860438222 is an apocalyptic number.

25860438222 is an abundant number, since it is smaller than the sum of its proper divisors (25937297538).

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

25860438222 is a wasteful number, since it uses less digits than its factorization.

25860438222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6404947.

The product of its (nonzero) digits is 368640, while the sum is 42.

The spelling of 25860438222 in words is "twenty-five billion, eight hundred sixty million, four hundred thirty-eight thousand, two hundred twenty-two".