25275298449149 has 8 divisors (see below), whose sum is σ = 28886196691968. Its totient is φ = 21664435536720.

The previous prime is 25275298449143. The next prime is 25275298449217. The reversal of 25275298449149 is 94194489257252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25275298449149 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25275298449143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7281437 + ... + 10176930.

It is an arithmetic number, because the mean of its divisors is an integer number (3610774586496).

Almost surely, 2^{25275298449149} is an apocalyptic number.

It is an amenable number.

25275298449149 is a deficient number, since it is larger than the sum of its proper divisors (3610898242819).

25275298449149 is a wasteful number, since it uses less digits than its factorization.

25275298449149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17665195.

The product of its digits is 522547200, while the sum is 71.

The spelling of 25275298449149 in words is "twenty-five trillion, two hundred seventy-five billion, two hundred ninety-eight million, four hundred forty-nine thousand, one hundred forty-nine".