25290833 has 2 divisors, whose sum is σ = 25290834. Its totient is φ = 25290832.

The previous prime is 25290829. The next prime is 25290877. The reversal of 25290833 is 33809252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18905104 + 6385729 = 4348^2 + 2527^2 .

It is a cyclic number.

It is not a de Polignac number, because 25290833 - 2² = 25290829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25290833.

It is not a weakly prime, because it can be changed into another prime (25290803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12645416 + 12645417.

It is an arithmetic number, because the mean of its divisors is an integer number (12645417).

Almost surely, 2^25290833 is an apocalyptic number.

It is an amenable number.

25290833 is a deficient number, since it is larger than the sum of its proper divisors (1).

25290833 is an equidigital number, since it uses as much as digits as its factorization.

25290833 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 25290833 is about 5028.9992046132. Note that the first 3 decimals coincide. The cubic root of 25290833 is about 293.5312729384.

The spelling of 25290833 in words is "twenty-five million, two hundred ninety thousand, eight hundred thirty-three".