25803853380271 has 4 divisors (see below), whose sum is σ = 26040585980200. Its totient is φ = 25567120780344.

The previous prime is 25803853380211. The next prime is 25803853380281. The reversal of 25803853380271 is 17208335830852.

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 25803853380271 - 2⁷ = 25803853380143 is a prime.

It is a super-2 number, since 2×25803853380271² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25803853380211) 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, 118366299801 + ... + 118366300018.

It is an arithmetic number, because the mean of its divisors is an integer number (6510146495050).

Almost surely, 2^{25803853380271} is an apocalyptic number.

25803853380271 is a deficient number, since it is larger than the sum of its proper divisors (236732599929).

25803853380271 is a wasteful number, since it uses less digits than its factorization.

25803853380271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236732599928.

The product of its (nonzero) digits is 9676800, while the sum is 55.

The spelling of 25803853380271 in words is "twenty-five trillion, eight hundred three billion, eight hundred fifty-three million, three hundred eighty thousand, two hundred seventy-one".