25416047 has 2 divisors, whose sum is σ = 25416048. Its totient is φ = 25416046.

The previous prime is 25416029. The next prime is 25416089. The reversal of 25416047 is 74061452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25416047 - 2⁶ = 25415983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25416007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12708023 + 12708024.

It is an arithmetic number, because the mean of its divisors is an integer number (12708024).

Almost surely, 2^25416047 is an apocalyptic number.

25416047 is a deficient number, since it is larger than the sum of its proper divisors (1).

25416047 is an equidigital number, since it uses as much as digits as its factorization.

25416047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 25416047 is about 5041.4330303992. The cubic root of 25416047 is about 294.0148965874.

Adding to 25416047 its reverse (74061452), we get a palindrome (99477499).

The spelling of 25416047 in words is "twenty-five million, four hundred sixteen thousand, forty-seven".