25203047 has 2 divisors, whose sum is σ = 25203048. Its totient is φ = 25203046.

The previous prime is 25203043. The next prime is 25203049. The reversal of 25203047 is 74030252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25203047 - 2² = 25203043 is a prime.

Together with 25203049, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25203041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12601523 + 12601524.

It is an arithmetic number, because the mean of its divisors is an integer number (12601524).

Almost surely, 2^25203047 is an apocalyptic number.

25203047 is a deficient number, since it is larger than the sum of its proper divisors (1).

25203047 is an equidigital number, since it uses as much as digits as its factorization.

25203047 is an evil number, because the sum of its binary digits is even.

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

The square root of 25203047 is about 5020.2636384955. The cubic root of 25203047 is about 293.1912576719.

Adding to 25203047 its reverse (74030252), we get a palindrome (99233299).

The spelling of 25203047 in words is "twenty-five million, two hundred three thousand, forty-seven".