25105049 has 2 divisors, whose sum is σ = 25105050. Its totient is φ = 25105048.

The previous prime is 25105043. The next prime is 25105057. The reversal of 25105049 is 94050152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13271449 + 11833600 = 3643^2 + 3440^2 .

It is a cyclic number.

It is not a de Polignac number, because 25105049 - 2⁴ = 25105033 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25105043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12552524 + 12552525.

It is an arithmetic number, because the mean of its divisors is an integer number (12552525).

Almost surely, 2^25105049 is an apocalyptic number.

It is an amenable number.

25105049 is a deficient number, since it is larger than the sum of its proper divisors (1).

25105049 is an equidigital number, since it uses as much as digits as its factorization.

25105049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 25105049 is about 5010.4938878318. The cubic root of 25105049 is about 292.8107550333.

The spelling of 25105049 in words is "twenty-five million, one hundred five thousand, forty-nine".