25173047 has 2 divisors, whose sum is σ = 25173048. Its totient is φ = 25173046.

The previous prime is 25173037. The next prime is 25173089. The reversal of 25173047 is 74037152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25173047 - 2¹⁰ = 25172023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25173007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12586523 + 12586524.

It is an arithmetic number, because the mean of its divisors is an integer number (12586524).

Almost surely, 2^25173047 is an apocalyptic number.

25173047 is a deficient number, since it is larger than the sum of its proper divisors (1).

25173047 is an equidigital number, since it uses as much as digits as its factorization.

25173047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 25173047 is about 5017.2748579284. The cubic root of 25173047 is about 293.0748798124.

The spelling of 25173047 in words is "twenty-five million, one hundred seventy-three thousand, forty-seven".