25250047 has 2 divisors, whose sum is σ = 25250048. Its totient is φ = 25250046.

The previous prime is 25250033. The next prime is 25250051. The reversal of 25250047 is 74005252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25250047 - 2¹⁵ = 25217279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25250087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12625023 + 12625024.

It is an arithmetic number, because the mean of its divisors is an integer number (12625024).

Almost surely, 2^25250047 is an apocalyptic number.

25250047 is a deficient number, since it is larger than the sum of its proper divisors (1).

25250047 is an equidigital number, since it uses as much as digits as its factorization.

25250047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 25250047 is about 5024.9424872331. The cubic root of 25250047 is about 293.3733974490.

Adding to 25250047 its reverse (74005252), we get a palindrome (99255299).

The spelling of 25250047 in words is "twenty-five million, two hundred fifty thousand, forty-seven".