25312097998 has 16 divisors (see below), whose sum is σ = 41435622576. Its totient is φ = 11501103040.

The previous prime is 25312097989. The next prime is 25312098001. The reversal of 25312097998 is 89979021352.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160561 + ... + 276412.

It is an arithmetic number, because the mean of its divisors is an integer number (2589726411).

Almost surely, 2^25312097998 is an apocalyptic number.

25312097998 is a deficient number, since it is larger than the sum of its proper divisors (16123524578).

25312097998 is a wasteful number, since it uses less digits than its factorization.

25312097998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439619.

The product of its (nonzero) digits is 2449440, while the sum is 55.

The spelling of 25312097998 in words is "twenty-five billion, three hundred twelve million, ninety-seven thousand, nine hundred ninety-eight".