25320047 has 2 divisors, whose sum is σ = 25320048. Its totient is φ = 25320046.

The previous prime is 25320041. The next prime is 25320059. The reversal of 25320047 is 74002352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25320047 - 2¹² = 25315951 is a prime.

It is a super-2 number, since 2×25320047² = 1282209560164418, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25320041) 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, 12660023 + 12660024.

It is an arithmetic number, because the mean of its divisors is an integer number (12660024).

Almost surely, 2^25320047 is an apocalyptic number.

25320047 is a deficient number, since it is larger than the sum of its proper divisors (1).

25320047 is an equidigital number, since it uses as much as digits as its factorization.

25320047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 25320047 is about 5031.9029203672. The cubic root of 25320047 is about 293.6442509348.

Adding to 25320047 its reverse (74002352), we get a palindrome (99322399).

The spelling of 25320047 in words is "twenty-five million, three hundred twenty thousand, forty-seven".