25075949 has 2 divisors, whose sum is σ = 25075950. Its totient is φ = 25075948.

The previous prime is 25075927. The next prime is 25075951. The reversal of 25075949 is 94957052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24571849 + 504100 = 4957^2 + 710^2 .

It is a cyclic number.

It is not a de Polignac number, because 25075949 - 2¹⁶ = 25010413 is a prime.

Together with 25075951, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25075049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12537974 + 12537975.

It is an arithmetic number, because the mean of its divisors is an integer number (12537975).

Almost surely, 2^25075949 is an apocalyptic number.

It is an amenable number.

25075949 is a deficient number, since it is larger than the sum of its proper divisors (1).

25075949 is an equidigital number, since it uses as much as digits as its factorization.

25075949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 25075949 is about 5007.5891404947. The cubic root of 25075949 is about 292.6975761090.

The spelling of 25075949 in words is "twenty-five million, seventy-five thousand, nine hundred forty-nine".