236513502225 has 288 divisors, whose sum is σ = 580906819584. Its totient is φ = 88796044800.

The previous prime is 236513502223. The next prime is 236513502233. The reversal of 236513502225 is 522205315632.

236513502225 is a `hidden beast` number, since 2 + 36 + 51 + 350 + 2 + 225 = 666.

It is not a de Polignac number, because 236513502225 - 2¹ = 236513502223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 236513502225.

It is not an unprimeable number, because it can be changed into a prime (236513502223) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 10574404 + ... + 10596746.

It is an arithmetic number, because the mean of its divisors is an integer number (2017037568).

Almost surely, 2^236513502225 is an apocalyptic number.

236513502225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

236513502225 is an abundant number, since it is smaller than the sum of its proper divisors (344393317359).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

236513502225 is a wasteful number, since it uses less digits than its factorization.

236513502225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22437 (or 22429 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

Adding to 236513502225 its reverse (522205315632), we get a palindrome (758718817857).

The spelling of 236513502225 in words is "two hundred thirty-six billion, five hundred thirteen million, five hundred two thousand, two hundred twenty-five".