290525849 has 2 divisors, whose sum is σ = 290525850. Its totient is φ = 290525848.

The previous prime is 290525797. The next prime is 290525863. The reversal of 290525849 is 948525092.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192654400 + 97871449 = 13880^2 + 9893^2 .

It is a cyclic number.

It is not a de Polignac number, because 290525849 - 2⁸ = 290525593 is a prime.

It is not a weakly prime, because it can be changed into another prime (290525449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145262924 + 145262925.

It is an arithmetic number, because the mean of its divisors is an integer number (145262925).

Almost surely, 2^290525849 is an apocalyptic number.

It is an amenable number.

290525849 is a deficient number, since it is larger than the sum of its proper divisors (1).

290525849 is an equidigital number, since it uses as much as digits as its factorization.

290525849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 290525849 is about 17044.8188315394. The cubic root of 290525849 is about 662.3104279717.

The spelling of 290525849 in words is "two hundred ninety million, five hundred twenty-five thousand, eight hundred forty-nine".