25548851 has 2 divisors, whose sum is σ = 25548852. Its totient is φ = 25548850.

The previous prime is 25548839. The next prime is 25548857. The reversal of 25548851 is 15884552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25548851 - 2¹⁸ = 25286707 is a prime.

It is not a weakly prime, because it can be changed into another prime (25548857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12774425 + 12774426.

It is an arithmetic number, because the mean of its divisors is an integer number (12774426).

Almost surely, 2^25548851 is an apocalyptic number.

25548851 is a deficient number, since it is larger than the sum of its proper divisors (1).

25548851 is an equidigital number, since it uses as much as digits as its factorization.

25548851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64000, while the sum is 38.

The square root of 25548851 is about 5054.5871245830. The cubic root of 25548851 is about 294.5261030532.

The spelling of 25548851 in words is "twenty-five million, five hundred forty-eight thousand, eight hundred fifty-one".