22650405025 has 6 divisors (see below), whose sum is σ = 28086502262. Its totient is φ = 18120324000.

The previous prime is 22650405013. The next prime is 22650405053. The reversal of 22650405025 is 52050405622.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 4745556544 + 17904848481 = 68888^2 + 133809^2 .

It is not a de Polignac number, because 22650405025 - 2⁵ = 22650404993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 453008076 + ... + 453008125.

Almost surely, 2^22650405025 is an apocalyptic number.

22650405025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22650405025 is a deficient number, since it is larger than the sum of its proper divisors (5436097237).

22650405025 is an equidigital number, since it uses as much as digits as its factorization.

22650405025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906016211 (or 906016206 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The spelling of 22650405025 in words is "twenty-two billion, six hundred fifty million, four hundred five thousand, twenty-five".