25230197 has 2 divisors, whose sum is σ = 25230198. Its totient is φ = 25230196.

The previous prime is 25230169. The next prime is 25230217. The reversal of 25230197 is 79103252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14432401 + 10797796 = 3799^2 + 3286^2 .

It is a cyclic number.

It is not a de Polignac number, because 25230197 - 2²² = 21035893 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25230797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12615098 + 12615099.

It is an arithmetic number, because the mean of its divisors is an integer number (12615099).

Almost surely, 2^25230197 is an apocalyptic number.

It is an amenable number.

25230197 is a deficient number, since it is larger than the sum of its proper divisors (1).

25230197 is an equidigital number, since it uses as much as digits as its factorization.

25230197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 25230197 is about 5022.9669519120. The cubic root of 25230197 is about 293.2965000526.

The spelling of 25230197 in words is "twenty-five million, two hundred thirty thousand, one hundred ninety-seven".