20825041 has 2 divisors, whose sum is σ = 20825042. Its totient is φ = 20825040.

The previous prime is 20825023. The next prime is 20825047. The reversal of 20825041 is 14052802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13535041 + 7290000 = 3679^2 + 2700^2 .

It is a cyclic number.

It is not a de Polignac number, because 20825041 - 2⁵ = 20825009 is a prime.

It is not a weakly prime, because it can be changed into another prime (20825047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10412520 + 10412521.

It is an arithmetic number, because the mean of its divisors is an integer number (10412521).

Almost surely, 2^20825041 is an apocalyptic number.

It is an amenable number.

20825041 is a deficient number, since it is larger than the sum of its proper divisors (1).

20825041 is an equidigital number, since it uses as much as digits as its factorization.

20825041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 20825041 is about 4563.4461758631. The cubic root of 20825041 is about 275.1240916546.

Adding to 20825041 its reverse (14052802), we get a palindrome (34877843).

The spelling of 20825041 in words is "twenty million, eight hundred twenty-five thousand, forty-one".