25075091 has 2 divisors, whose sum is σ = 25075092. Its totient is φ = 25075090.

The previous prime is 25075049. The next prime is 25075097. The reversal of 25075091 is 19057052.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25075091 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25075097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12537545 + 12537546.

It is an arithmetic number, because the mean of its divisors is an integer number (12537546).

Almost surely, 2^25075091 is an apocalyptic number.

25075091 is a deficient number, since it is larger than the sum of its proper divisors (1).

25075091 is an equidigital number, since it uses as much as digits as its factorization.

25075091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 25075091 is about 5007.5034697941. The cubic root of 25075091 is about 292.6942377523.

The spelling of 25075091 in words is "twenty-five million, seventy-five thousand, ninety-one".