23801372182225 has 81 divisors (see below), whose sum is σ = 32786246683281. Its totient is φ = 17127626788800.

The previous prime is 23801372182223. The next prime is 23801372182241. The reversal of 23801372182225 is 52228127310832.

The square root of 23801372182225 is 4878665.

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 103247185041 + 23698124997184 = 321321^2 + 4868072^2 .

It is not a de Polignac number, because 23801372182225 - 2¹ = 23801372182223 is a prime.

It is a super-3 number, since 3×23801372182225³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23801372182223) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 28710943111 + ... + 28710943939.

Almost surely, 2^{23801372182225} is an apocalyptic number.

23801372182225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

23801372182225 is the 4878665-th square number.

23801372182225 is the 2439333-rd centered octagonal number.

It is an amenable number.

23801372182225 is a deficient number, since it is larger than the sum of its proper divisors (8984874501056).

23801372182225 is an frugal number, since it uses more digits than its factorization.

23801372182225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1904 (or 952 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 23801372182225 in words is "twenty-three trillion, eight hundred one billion, three hundred seventy-two million, one hundred eighty-two thousand, two hundred twenty-five".