25790513 has 16 divisors (see below), whose sum is σ = 31852800. Its totient is φ = 20801088.

The previous prime is 25790473. The next prime is 25790549. The reversal of 25790513 is 31509752.

It is not a de Polignac number, because 25790513 - 2⁶ = 25790449 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25790513.

It is not an unprimeable number, because it can be changed into a prime (25790563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3620 + ... + 8042.

It is an arithmetic number, because the mean of its divisors is an integer number (1990800).

Almost surely, 2^25790513 is an apocalyptic number.

It is an amenable number.

25790513 is a deficient number, since it is larger than the sum of its proper divisors (6062287).

25790513 is an equidigital number, since it uses as much as digits as its factorization.

25790513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4461 (or 4447 counting only the distinct ones).

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 25790513 is about 5078.4360781642. The cubic root of 25790513 is about 295.4518136466.

The spelling of 25790513 in words is "twenty-five million, seven hundred ninety thousand, five hundred thirteen".