22708642025 has 12 divisors (see below), whose sum is σ = 28168192284. Its totient is φ = 18160800000.

The previous prime is 22708641961. The next prime is 22708642027. The reversal of 22708642025 is 52024680722.

It can be written as a sum of positive squares in 6 ways, for example, as 171426649 + 22537215376 = 13093^2 + 150124^2 .

It is not a de Polignac number, because 22708642025 - 2⁶ = 22708641961 is a prime.

It is a super-2 number, since 2×22708642025² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22708642025.

It is not an unprimeable number, because it can be changed into a prime (22708642027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76316 + ... + 226365.

It is an arithmetic number, because the mean of its divisors is an integer number (2347349357).

Almost surely, 2^22708642025 is an apocalyptic number.

22708642025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22708642025 is a deficient number, since it is larger than the sum of its proper divisors (5459550259).

22708642025 is a wasteful number, since it uses less digits than its factorization.

22708642025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305692 (or 305687 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 38.

The spelling of 22708642025 in words is "twenty-two billion, seven hundred eight million, six hundred forty-two thousand, twenty-five".