25420565222 has 16 divisors (see below), whose sum is σ = 43479519552. Its totient is φ = 11042417280.

The previous prime is 25420565221. The next prime is 25420565323. The reversal of 25420565222 is 22256502452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25420565221) 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, 28755854 + ... + 28756737.

It is an arithmetic number, because the mean of its divisors is an integer number (2717469972).

Almost surely, 2^25420565222 is an apocalyptic number.

25420565222 is a deficient number, since it is larger than the sum of its proper divisors (18058954330).

25420565222 is a wasteful number, since it uses less digits than its factorization.

25420565222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57512623.

The product of its (nonzero) digits is 96000, while the sum is 35.

The spelling of 25420565222 in words is "twenty-five billion, four hundred twenty million, five hundred sixty-five thousand, two hundred twenty-two".