25204213 has 2 divisors, whose sum is σ = 25204214. Its totient is φ = 25204212.

The previous prime is 25204211. The next prime is 25204229. The reversal of 25204213 is 31240252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19554084 + 5650129 = 4422^2 + 2377^2 .

It is a cyclic number.

It is not a de Polignac number, because 25204213 - 2¹ = 25204211 is a prime.

Together with 25204211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25204211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12602106 + 12602107.

It is an arithmetic number, because the mean of its divisors is an integer number (12602107).

Almost surely, 2^25204213 is an apocalyptic number.

It is an amenable number.

25204213 is a deficient number, since it is larger than the sum of its proper divisors (1).

25204213 is an equidigital number, since it uses as much as digits as its factorization.

25204213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 25204213 is about 5020.3797665117. The cubic root of 25204213 is about 293.1957790265.

Adding to 25204213 its reverse (31240252), we get a palindrome (56444465).

The spelling of 25204213 in words is "twenty-five million, two hundred four thousand, two hundred thirteen".