25632493 has 2 divisors, whose sum is σ = 25632494. Its totient is φ = 25632492.

The previous prime is 25632479. The next prime is 25632517. The reversal of 25632493 is 39423652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25623844 + 8649 = 5062^2 + 93^2 .

It is a cyclic number.

It is not a de Polignac number, because 25632493 - 2⁵ = 25632461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25632473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12816246 + 12816247.

It is an arithmetic number, because the mean of its divisors is an integer number (12816247).

Almost surely, 2^25632493 is an apocalyptic number.

It is an amenable number.

25632493 is a deficient number, since it is larger than the sum of its proper divisors (1).

25632493 is an equidigital number, since it uses as much as digits as its factorization.

25632493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 34.

The square root of 25632493 is about 5062.8542345203. The cubic root of 25632493 is about 294.8471601262.

The spelling of 25632493 in words is "twenty-five million, six hundred thirty-two thousand, four hundred ninety-three".