25382993 has 6 divisors (see below), whose sum is σ = 26789634. Its totient is φ = 24046704.

The previous prime is 25382971. The next prime is 25383013. The reversal of 25382993 is 39928352.

It can be written as a sum of positive squares in only one way, i.e., 12759184 + 12623809 = 3572^2 + 3553^2 .

It is not a de Polignac number, because 25382993 - 2¹² = 25378897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25382993.

It is not an unprimeable number, because it can be changed into a prime (25382933) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34796 + ... + 35517.

It is an arithmetic number, because the mean of its divisors is an integer number (4464939).

Almost surely, 2^25382993 is an apocalyptic number.

It is an amenable number.

25382993 is a deficient number, since it is larger than the sum of its proper divisors (1406641).

25382993 is an equidigital number, since it uses as much as digits as its factorization.

25382993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70351 (or 70332 counting only the distinct ones).

The product of its digits is 116640, while the sum is 41.

The square root of 25382993 is about 5038.1537292941. The cubic root of 25382993 is about 293.8873841749.

The spelling of 25382993 in words is "twenty-five million, three hundred eighty-two thousand, nine hundred ninety-three".