25094749 has 2 divisors, whose sum is σ = 25094750. Its totient is φ = 25094748.

The previous prime is 25094711. The next prime is 25094789. The reversal of 25094749 is 94749052.

It is an a-pointer prime, because the next prime (25094789) can be obtained adding 25094749 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14303524 + 10791225 = 3782^2 + 3285^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25094749 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25094789) 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, 12547374 + 12547375.

It is an arithmetic number, because the mean of its divisors is an integer number (12547375).

Almost surely, 2^25094749 is an apocalyptic number.

It is an amenable number.

25094749 is a deficient number, since it is larger than the sum of its proper divisors (1).

25094749 is an equidigital number, since it uses as much as digits as its factorization.

25094749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 25094749 is about 5009.4659395988. The cubic root of 25094749 is about 292.7707051437.

The spelling of 25094749 in words is "twenty-five million, ninety-four thousand, seven hundred forty-nine".