25416493 has 2 divisors, whose sum is σ = 25416494. Its totient is φ = 25416492.

The previous prime is 25416491. The next prime is 25416527. The reversal of 25416493 is 39461452.

It is a happy number.

It is an a-pointer prime, because the next prime (25416527) can be obtained adding 25416493 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20412324 + 5004169 = 4518^2 + 2237^2 .

It is a cyclic number.

It is not a de Polignac number, because 25416493 - 2¹ = 25416491 is a prime.

Together with 25416491, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25416491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12708246 + 12708247.

It is an arithmetic number, because the mean of its divisors is an integer number (12708247).

Almost surely, 2^25416493 is an apocalyptic number.

It is an amenable number.

25416493 is a deficient number, since it is larger than the sum of its proper divisors (1).

25416493 is an equidigital number, since it uses as much as digits as its factorization.

25416493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 34.

The square root of 25416493 is about 5041.4772636599. The cubic root of 25416493 is about 294.0166163654.

The spelling of 25416493 in words is "twenty-five million, four hundred sixteen thousand, four hundred ninety-three".