25496851 has 2 divisors, whose sum is σ = 25496852. Its totient is φ = 25496850.

The previous prime is 25496839. The next prime is 25496873. The reversal of 25496851 is 15869452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25496851 - 2⁵ = 25496819 is a prime.

It is not a weakly prime, because it can be changed into another prime (25496951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12748425 + 12748426.

It is an arithmetic number, because the mean of its divisors is an integer number (12748426).

Almost surely, 2^25496851 is an apocalyptic number.

25496851 is a deficient number, since it is larger than the sum of its proper divisors (1).

25496851 is an equidigital number, since it uses as much as digits as its factorization.

25496851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 40.

The square root of 25496851 is about 5049.4406620932. The cubic root of 25496851 is about 294.3261493820.

The spelling of 25496851 in words is "twenty-five million, four hundred ninety-six thousand, eight hundred fifty-one".