25407841 has 2 divisors, whose sum is σ = 25407842. Its totient is φ = 25407840.

The previous prime is 25407839. The next prime is 25407853. The reversal of 25407841 is 14870452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25401600 + 6241 = 5040^2 + 79^2 .

It is a cyclic number.

It is not a de Polignac number, because 25407841 - 2¹ = 25407839 is a prime.

Together with 25407839, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (25407821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12703920 + 12703921.

It is an arithmetic number, because the mean of its divisors is an integer number (12703921).

Almost surely, 2^25407841 is an apocalyptic number.

It is an amenable number.

25407841 is a deficient number, since it is larger than the sum of its proper divisors (1).

25407841 is an equidigital number, since it uses as much as digits as its factorization.

25407841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 25407841 is about 5040.6191088000. The cubic root of 25407841 is about 293.9832506231.

The spelling of 25407841 in words is "twenty-five million, four hundred seven thousand, eight hundred forty-one".