25822457 has 2 divisors, whose sum is σ = 25822458. Its totient is φ = 25822456.

The previous prime is 25822453. The next prime is 25822469. The reversal of 25822457 is 75422852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25110121 + 712336 = 5011^2 + 844^2 .

It is a cyclic number.

It is not a de Polignac number, because 25822457 - 2² = 25822453 is a prime.

It is not a weakly prime, because it can be changed into another prime (25822453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12911228 + 12911229.

It is an arithmetic number, because the mean of its divisors is an integer number (12911229).

Almost surely, 2^25822457 is an apocalyptic number.

It is an amenable number.

25822457 is a deficient number, since it is larger than the sum of its proper divisors (1).

25822457 is an equidigital number, since it uses as much as digits as its factorization.

25822457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 44800, while the sum is 35.

The square root of 25822457 is about 5081.5801676250. The cubic root of 25822457 is about 295.5737450306.

The spelling of 25822457 in words is "twenty-five million, eight hundred twenty-two thousand, four hundred fifty-seven".