25958813210803 has 4 divisors (see below), whose sum is σ = 28318705320888. Its totient is φ = 23598921100720.

The previous prime is 25958813210773. The next prime is 25958813210807. The reversal of 25958813210803 is 30801231885952.

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

It is a cyclic number.

It is not a de Polignac number, because 25958813210803 - 2³⁷ = 25821374257331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25958813210807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1179946055026 + ... + 1179946055047.

It is an arithmetic number, because the mean of its divisors is an integer number (7079676330222).

Almost surely, 2^{25958813210803} is an apocalyptic number.

25958813210803 is a deficient number, since it is larger than the sum of its proper divisors (2359892110085).

25958813210803 is a wasteful number, since it uses less digits than its factorization.

25958813210803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2359892110084.

The product of its (nonzero) digits is 4147200, while the sum is 55.

The spelling of 25958813210803 in words is "twenty-five trillion, nine hundred fifty-eight billion, eight hundred thirteen million, two hundred ten thousand, eight hundred three".