25197533 has 2 divisors, whose sum is σ = 25197534. Its totient is φ = 25197532.

The previous prime is 25197517. The next prime is 25197541. The reversal of 25197533 is 33579152.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23396569 + 1800964 = 4837^2 + 1342^2 .

It is a cyclic number.

It is not a de Polignac number, because 25197533 - 2⁴ = 25197517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25197493 and 25197502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25197563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12598766 + 12598767.

It is an arithmetic number, because the mean of its divisors is an integer number (12598767).

Almost surely, 2^25197533 is an apocalyptic number.

It is an amenable number.

25197533 is a deficient number, since it is larger than the sum of its proper divisors (1).

25197533 is an equidigital number, since it uses as much as digits as its factorization.

25197533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28350, while the sum is 35.

The square root of 25197533 is about 5019.7144341088. The cubic root of 25197533 is about 293.1698743512.

The spelling of 25197533 in words is "twenty-five million, one hundred ninety-seven thousand, five hundred thirty-three".