25223197 has 2 divisors, whose sum is σ = 25223198. Its totient is φ = 25223196.

The previous prime is 25223183. The next prime is 25223213. The reversal of 25223197 is 79132252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22174681 + 3048516 = 4709^2 + 1746^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25223197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25223117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12611598 + 12611599.

It is an arithmetic number, because the mean of its divisors is an integer number (12611599).

Almost surely, 2^25223197 is an apocalyptic number.

It is an amenable number.

25223197 is a deficient number, since it is larger than the sum of its proper divisors (1).

25223197 is an equidigital number, since it uses as much as digits as its factorization.

25223197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 31.

The square root of 25223197 is about 5022.2701042457. The cubic root of 25223197 is about 293.2693729635.

The spelling of 25223197 in words is "twenty-five million, two hundred twenty-three thousand, one hundred ninety-seven".