25025849 has 2 divisors, whose sum is σ = 25025850. Its totient is φ = 25025848.

The previous prime is 25025843. The next prime is 25025851. The reversal of 25025849 is 94852052.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24157225 + 868624 = 4915^2 + 932^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25025849 is a prime.

Together with 25025851, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_1567475 and since 25025849 and 1567475 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (25025843) 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, 12512924 + 12512925.

It is an arithmetic number, because the mean of its divisors is an integer number (12512925).

Almost surely, 2^25025849 is an apocalyptic number.

It is an amenable number.

25025849 is a deficient number, since it is larger than the sum of its proper divisors (1).

25025849 is an equidigital number, since it uses as much as digits as its factorization.

25025849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 25025849 is about 5002.5842321744. The cubic root of 25025849 is about 292.5025163540.

The spelling of 25025849 in words is "twenty-five million, twenty-five thousand, eight hundred forty-nine".