23520026565025 has 27 divisors (see below), whose sum is σ = 29225486472619. Its totient is φ = 18776971105280.

The previous prime is 23520026565023. The next prime is 23520026565029. The reversal of 23520026565025 is 52056562002532.

The square root of 23520026565025 is 4849745.

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

It can be written as a sum of positive squares in 13 ways, for example, as 18867964250529 + 4652062314496 = 4343727^2 + 2156864^2 .

It is not a de Polignac number, because 23520026565025 - 2¹ = 23520026565023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23520026565023) 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, 19326233217 + ... + 19326234433.

Almost surely, 2^{23520026565025} is an apocalyptic number.

23520026565025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

23520026565025 is the 4849745-th square number.

23520026565025 is the 2424873-rd centered octagonal number.

It is an amenable number.

23520026565025 is a deficient number, since it is larger than the sum of its proper divisors (5705459907594).

23520026565025 is an frugal number, since it uses more digits than its factorization.

23520026565025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4038 (or 2019 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 43.

Adding to 23520026565025 its reverse (52056562002532), we get a palindrome (75576588567557).

The spelling of 23520026565025 in words is "twenty-three trillion, five hundred twenty billion, twenty-six million, five hundred sixty-five thousand, twenty-five".