25149347 has 2 divisors, whose sum is σ = 25149348. Its totient is φ = 25149346.

The previous prime is 25149323. The next prime is 25149349. The reversal of 25149347 is 74394152.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25149347 - 2⁶ = 25149283 is a prime.

Together with 25149349, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25149349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12574673 + 12574674.

It is an arithmetic number, because the mean of its divisors is an integer number (12574674).

Almost surely, 2^25149347 is an apocalyptic number.

25149347 is a deficient number, since it is larger than the sum of its proper divisors (1).

25149347 is an equidigital number, since it uses as much as digits as its factorization.

25149347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 35.

The square root of 25149347 is about 5014.9124618482. The cubic root of 25149347 is about 292.9828759110.

The spelling of 25149347 in words is "twenty-five million, one hundred forty-nine thousand, three hundred forty-seven".