25576247 has 2 divisors, whose sum is σ = 25576248. Its totient is φ = 25576246.

The previous prime is 25576219. The next prime is 25576249. The reversal of 25576247 is 74267552.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25576247 - 2²⁴ = 8799031 is a prime.

Together with 25576249, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25576247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25576249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12788123 + 12788124.

It is an arithmetic number, because the mean of its divisors is an integer number (12788124).

Almost surely, 2^25576247 is an apocalyptic number.

25576247 is a deficient number, since it is larger than the sum of its proper divisors (1).

25576247 is an equidigital number, since it uses as much as digits as its factorization.

25576247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 117600, while the sum is 38.

The square root of 25576247 is about 5057.2964121159. The cubic root of 25576247 is about 294.6313387677.

The spelling of 25576247 in words is "twenty-five million, five hundred seventy-six thousand, two hundred forty-seven".