25245472801 has 2 divisors, whose sum is σ = 25245472802. Its totient is φ = 25245472800.

The previous prime is 25245472789. The next prime is 25245472831. The reversal of 25245472801 is 10827454252.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20585362576 + 4660110225 = 143476^2 + 68265^2 .

It is a cyclic number.

It is not a de Polignac number, because 25245472801 - 2⁹ = 25245472289 is a prime.

It is not a weakly prime, because it can be changed into another prime (25245472831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12622736400 + 12622736401.

It is an arithmetic number, because the mean of its divisors is an integer number (12622736401).

Almost surely, 2^25245472801 is an apocalyptic number.

It is an amenable number.

25245472801 is a deficient number, since it is larger than the sum of its proper divisors (1).

25245472801 is an equidigital number, since it uses as much as digits as its factorization.

25245472801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 179200, while the sum is 40.

The spelling of 25245472801 in words is "twenty-five billion, two hundred forty-five million, four hundred seventy-two thousand, eight hundred one".