22689281425 has 12 divisors (see below), whose sum is σ = 28136682396. Its totient is φ = 18150152000.

The previous prime is 22689281423. The next prime is 22689281429. The reversal of 22689281425 is 52418298622.

It can be written as a sum of positive squares in 6 ways, for example, as 1163696769 + 21525584656 = 34113^2 + 146716^2 .

It is not a de Polignac number, because 22689281425 - 2¹ = 22689281423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22689281423) 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, 517875 + ... + 559975.

It is an arithmetic number, because the mean of its divisors is an integer number (2344723533).

Almost surely, 2^22689281425 is an apocalyptic number.

22689281425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22689281425 is a deficient number, since it is larger than the sum of its proper divisors (5447400971).

22689281425 is a wasteful number, since it uses less digits than its factorization.

22689281425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63668 (or 63663 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 49.

The spelling of 22689281425 in words is "twenty-two billion, six hundred eighty-nine million, two hundred eighty-one thousand, four hundred twenty-five".