25490671 has 2 divisors, whose sum is σ = 25490672. Its totient is φ = 25490670.

The previous prime is 25490657. The next prime is 25490687. The reversal of 25490671 is 17609452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25490671 - 2⁵ = 25490639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25491671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12745335 + 12745336.

It is an arithmetic number, because the mean of its divisors is an integer number (12745336).

Almost surely, 2^25490671 is an apocalyptic number.

25490671 is a deficient number, since it is larger than the sum of its proper divisors (1).

25490671 is an equidigital number, since it uses as much as digits as its factorization.

25490671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 25490671 is about 5048.8286760396. The cubic root of 25490671 is about 294.3023675879.

The spelling of 25490671 in words is "twenty-five million, four hundred ninety thousand, six hundred seventy-one".