25149159507 has 4 divisors (see below), whose sum is σ = 33532212680. Its totient is φ = 16766106336.

The previous prime is 25149159493. The next prime is 25149159517. The reversal of 25149159507 is 70595194152.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 25149159507 - 2¹⁰ = 25149158483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25149159517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4191526582 + ... + 4191526587.

It is an arithmetic number, because the mean of its divisors is an integer number (8383053170).

Almost surely, 2^25149159507 is an apocalyptic number.

25149159507 is a deficient number, since it is larger than the sum of its proper divisors (8383053173).

25149159507 is an equidigital number, since it uses as much as digits as its factorization.

25149159507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8383053172.

The product of its (nonzero) digits is 567000, while the sum is 48.

The spelling of 25149159507 in words is "twenty-five billion, one hundred forty-nine million, one hundred fifty-nine thousand, five hundred seven".