25121896271 has 2 divisors, whose sum is σ = 25121896272. Its totient is φ = 25121896270.

The previous prime is 25121896259. The next prime is 25121896291. The reversal of 25121896271 is 17269812152.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25121896271 is a prime.

It is a super-2 number, since 2×25121896271² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25121896291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12560948135 + 12560948136.

It is an arithmetic number, because the mean of its divisors is an integer number (12560948136).

Almost surely, 2^25121896271 is an apocalyptic number.

25121896271 is a deficient number, since it is larger than the sum of its proper divisors (1).

25121896271 is an equidigital number, since it uses as much as digits as its factorization.

25121896271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 44.

The spelling of 25121896271 in words is "twenty-five billion, one hundred twenty-one million, eight hundred ninety-six thousand, two hundred seventy-one".