653090257 has 2 divisors, whose sum is σ = 653090258. Its totient is φ = 653090256.

The previous prime is 653090209. The next prime is 653090281. The reversal of 653090257 is 752090356.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 499924881 + 153165376 = 22359^2 + 12376^2 .

It is a cyclic number.

It is not a de Polignac number, because 653090257 - 2¹¹ = 653088209 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (653097257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326545128 + 326545129.

It is an arithmetic number, because the mean of its divisors is an integer number (326545129).

Almost surely, 2^653090257 is an apocalyptic number.

It is an amenable number.

653090257 is a deficient number, since it is larger than the sum of its proper divisors (1).

653090257 is an equidigital number, since it uses as much as digits as its factorization.

653090257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 653090257 is about 25555.6306320153. The cubic root of 653090257 is about 867.6097055544.

Subtracting 653090257 from its reverse (752090356), we obtain a palindrome (99000099).

The spelling of 653090257 in words is "six hundred fifty-three million, ninety thousand, two hundred fifty-seven".