22887151225 has 27 divisors (see below), whose sum is σ = 28819101423. Its totient is φ = 18030751440.

The previous prime is 22887151201. The next prime is 22887151283. The reversal of 22887151225 is 52215178822.

The square root of 22887151225 is 151285.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 8239374441 + 14647776784 = 90771^2 + 121028^2 .

It is not a de Polignac number, because 22887151225 - 2⁷ = 22887151097 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 59757384 + ... + 59757766.

Almost surely, 2^22887151225 is an apocalyptic number.

22887151225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22887151225 is the 151285-th square number.

22887151225 is the 75643-rd centered octagonal number.

It is an amenable number.

22887151225 is a deficient number, since it is larger than the sum of its proper divisors (5931950198).

22887151225 is an frugal number, since it uses more digits than its factorization.

22887151225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934 (or 467 counting only the distinct ones).

The product of its digits is 179200, while the sum is 43.

The spelling of 22887151225 in words is "twenty-two billion, eight hundred eighty-seven million, one hundred fifty-one thousand, two hundred twenty-five".