25222807 has 2 divisors, whose sum is σ = 25222808. Its totient is φ = 25222806.

The previous prime is 25222793. The next prime is 25222877. The reversal of 25222807 is 70822252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25222807 - 2¹⁹ = 24698519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25222877) 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, 12611403 + 12611404.

It is an arithmetic number, because the mean of its divisors is an integer number (12611404).

Almost surely, 2^25222807 is an apocalyptic number.

25222807 is a deficient number, since it is larger than the sum of its proper divisors (1).

25222807 is an equidigital number, since it uses as much as digits as its factorization.

25222807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 25222807 is about 5022.2312770322. The cubic root of 25222807 is about 293.2678614495.

It can be divided in two parts, 2522 and 2807, that added together give a square (5329 = 73²).

The spelling of 25222807 in words is "twenty-five million, two hundred twenty-two thousand, eight hundred seven".