23646775212025 has 27 divisors (see below), whose sum is σ = 34109512278669. Its totient is φ = 16214814866880.

The previous prime is 23646775211921. The next prime is 23646775212029. The reversal of 23646775212025 is 52021257764632.

It is a happy number.

The square root of 23646775212025 is 4862795.

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 4474532165481 + 19172243046544 = 2115309^2 + 4378612^2 .

It is not a de Polignac number, because 23646775212025 - 2⁹ = 23646775211513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23646775212029) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 170128357 + ... + 170267293.

Almost surely, 2^{23646775212025} is an apocalyptic number.

23646775212025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

23646775212025 is the 4862795-th square number.

23646775212025 is the 2431398-th centered octagonal number.

It is an amenable number.

23646775212025 is a deficient number, since it is larger than the sum of its proper divisors (10462737066644).

23646775212025 is an frugal number, since it uses more digits than its factorization.

23646775212025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277898 (or 138949 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 52.

The spelling of 23646775212025 in words is "twenty-three trillion, six hundred forty-six billion, seven hundred seventy-five million, two hundred twelve thousand, twenty-five".