25320555012249 has 32 divisors (see below), whose sum is σ = 43250168451840. Its totient is φ = 14340845304576.

The previous prime is 25320555012227. The next prime is 25320555012253. The reversal of 25320555012249 is 94221055502352.

25320555012249 is a `hidden beast` number, since 2 + 5 + 32 + 0 + 5 + 550 + 1 + 22 + 49 = 666.

It is not a de Polignac number, because 25320555012249 - 2²⁰ = 25320553963673 is a prime.

It is a super-2 number, since 2×25320555012249² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25320555012149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 592771522 + ... + 592814235.

It is an arithmetic number, because the mean of its divisors is an integer number (1351567764120).

Almost surely, 2^{25320555012249} is an apocalyptic number.

It is an amenable number.

25320555012249 is a deficient number, since it is larger than the sum of its proper divisors (17929613439591).

25320555012249 is a wasteful number, since it uses less digits than its factorization.

25320555012249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185585886 (or 1185585880 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 45.

The spelling of 25320555012249 in words is "twenty-five trillion, three hundred twenty billion, five hundred fifty-five million, twelve thousand, two hundred forty-nine".