25750213 has 2 divisors, whose sum is σ = 25750214. Its totient is φ = 25750212.

The previous prime is 25750211. The next prime is 25750217. The reversal of 25750213 is 31205752.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25735329 + 14884 = 5073^2 + 122^2 .

It is a cyclic number.

It is not a de Polignac number, because 25750213 - 2¹ = 25750211 is a prime.

Together with 25750211, 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 (25750211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12875106 + 12875107.

It is an arithmetic number, because the mean of its divisors is an integer number (12875107).

Almost surely, 2^25750213 is an apocalyptic number.

It is an amenable number.

25750213 is a deficient number, since it is larger than the sum of its proper divisors (1).

25750213 is an equidigital number, since it uses as much as digits as its factorization.

25750213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 25750213 is about 5074.4667700163. The cubic root of 25750213 is about 295.2978433960.

Adding to 25750213 its reverse (31205752), we get a palindrome (56955965).

The spelling of 25750213 in words is "twenty-five million, seven hundred fifty thousand, two hundred thirteen".