25772801 has 2 divisors, whose sum is σ = 25772802. Its totient is φ = 25772800.

The previous prime is 25772783. The next prime is 25772807. The reversal of 25772801 is 10827752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22800625 + 2972176 = 4775^2 + 1724^2 .

It is a cyclic number.

It is not a de Polignac number, because 25772801 - 2⁶ = 25772737 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (25772807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12886400 + 12886401.

It is an arithmetic number, because the mean of its divisors is an integer number (12886401).

Almost surely, 2^25772801 is an apocalyptic number.

It is an amenable number.

25772801 is a deficient number, since it is larger than the sum of its proper divisors (1).

25772801 is an equidigital number, since it uses as much as digits as its factorization.

25772801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 25772801 is about 5076.6919347150. The cubic root of 25772801 is about 295.3841629187.

The spelling of 25772801 in words is "twenty-five million, seven hundred seventy-two thousand, eight hundred one".