22436658460225 has 27 divisors (see below), whose sum is σ = 29084383699273. Its totient is φ = 17168504423840.

The previous prime is 22436658460213. The next prime is 22436658460277. The reversal of 22436658460225 is 52206485663422.

The square root of 22436658460225 is 4736735.

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

It can be written as a sum of positive squares in 4 ways, for example, as 13906567180801 + 8530091279424 = 3729151^2 + 2920632^2 .

It is not a de Polignac number, because 22436658460225 - 2²⁷ = 22436524242497 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, 544703931 + ... + 544745119.

Almost surely, 2^{22436658460225} is an apocalyptic number.

22436658460225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22436658460225 is the 4736735-th square number.

22436658460225 is the 2368368-th centered octagonal number.

It is an amenable number.

22436658460225 is a deficient number, since it is larger than the sum of its proper divisors (6647725239048).

22436658460225 is an frugal number, since it uses more digits than its factorization.

22436658460225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82434 (or 41217 counting only the distinct ones).

The product of its (nonzero) digits is 33177600, while the sum is 55.

The spelling of 22436658460225 in words is "twenty-two trillion, four hundred thirty-six billion, six hundred fifty-eight million, four hundred sixty thousand, two hundred twenty-five".