25261710098 has 4 divisors (see below), whose sum is σ = 37892565150. Its totient is φ = 12630855048.

The previous prime is 25261710007. The next prime is 25261710113. The reversal of 25261710098 is 89001716252.

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

It can be written as a sum of positive squares in only one way, i.e., 19617643969 + 5644066129 = 140063^2 + 75127^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6315427523 + ... + 6315427526.

Almost surely, 2^25261710098 is an apocalyptic number.

25261710098 is a deficient number, since it is larger than the sum of its proper divisors (12630855052).

25261710098 is a wasteful number, since it uses less digits than its factorization.

25261710098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12630855051.

The product of its (nonzero) digits is 60480, while the sum is 41.

The spelling of 25261710098 in words is "twenty-five billion, two hundred sixty-one million, seven hundred ten thousand, ninety-eight".