22451235325 has 6 divisors (see below), whose sum is σ = 27839531834. Its totient is φ = 17960988240.

The previous prime is 22451235281. The next prime is 22451235329. The reversal of 22451235325 is 52353215422.

It can be written as a sum of positive squares in 3 ways, for example, as 4765693156 + 17685542169 = 69034^2 + 132987^2 .

It is not a de Polignac number, because 22451235325 - 2⁷ = 22451235197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22451235329) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 449024682 + ... + 449024731.

Almost surely, 2^22451235325 is an apocalyptic number.

22451235325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22451235325 is a deficient number, since it is larger than the sum of its proper divisors (5388296509).

22451235325 is an equidigital number, since it uses as much as digits as its factorization.

22451235325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898049423 (or 898049418 counting only the distinct ones).

The product of its digits is 72000, while the sum is 34.

The spelling of 22451235325 in words is "twenty-two billion, four hundred fifty-one million, two hundred thirty-five thousand, three hundred twenty-five".