25025689149 has 8 divisors (see below), whose sum is σ = 34269412320. Its totient is φ = 16232879376.

The previous prime is 25025689123. The next prime is 25025689163. The reversal of 25025689149 is 94198652052.

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

It is not a de Polignac number, because 25025689149 - 2⁸ = 25025688893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25025689349) 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, 112728219 + ... + 112728440.

It is an arithmetic number, because the mean of its divisors is an integer number (4283676540).

Almost surely, 2^25025689149 is an apocalyptic number.

It is an amenable number.

25025689149 is a deficient number, since it is larger than the sum of its proper divisors (9243723171).

25025689149 is a wasteful number, since it uses less digits than its factorization.

25025689149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225456699.

The product of its (nonzero) digits is 1555200, while the sum is 51.

The spelling of 25025689149 in words is "twenty-five billion, twenty-five million, six hundred eighty-nine thousand, one hundred forty-nine".