25484647 has 2 divisors, whose sum is σ = 25484648. Its totient is φ = 25484646.

The previous prime is 25484633. The next prime is 25484651. The reversal of 25484647 is 74648452.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25484647 is a prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25484447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12742323 + 12742324.

It is an arithmetic number, because the mean of its divisors is an integer number (12742324).

Almost surely, 2^25484647 is an apocalyptic number.

25484647 is a deficient number, since it is larger than the sum of its proper divisors (1).

25484647 is an equidigital number, since it uses as much as digits as its factorization.

25484647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 215040, while the sum is 40.

The square root of 25484647 is about 5048.2320667735. The cubic root of 25484647 is about 294.2791824112.

The spelling of 25484647 in words is "twenty-five million, four hundred eighty-four thousand, six hundred forty-seven".