2306540025225 has 36 divisors (see below), whose sum is σ = 4131364212300. Its totient is φ = 1230126468480.

The previous prime is 2306540025217. The next prime is 2306540025239. The reversal of 2306540025225 is 5225200456032.

2306540025225 is a `hidden beast` number, since 2 + 3 + 0 + 6 + 5 + 400 + 25 + 225 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 171326455056 + 2135213570169 = 413916^2 + 1461237^2 .

It is not a de Polignac number, because 2306540025225 - 2³ = 2306540025217 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2306540025225.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12922891 + ... + 13100159.

Almost surely, 2^{2306540025225} is an apocalyptic number.

2306540025225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2306540025225 is a deficient number, since it is larger than the sum of its proper divisors (1824824187075).

2306540025225 is a wasteful number, since it uses less digits than its factorization.

2306540025225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235114 (or 235106 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

The spelling of 2306540025225 in words is "two trillion, three hundred six billion, five hundred forty million, twenty-five thousand, two hundred twenty-five".