526521253 has 2 divisors, whose sum is σ = 526521254. Its totient is φ = 526521252.

The previous prime is 526521223. The next prime is 526521287. The reversal of 526521253 is 352125625.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 306355009 + 220166244 = 17503^2 + 14838^2 .

It is a cyclic number.

It is not a de Polignac number, because 526521253 - 2¹⁷ = 526390181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (526521223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263260626 + 263260627.

It is an arithmetic number, because the mean of its divisors is an integer number (263260627).

Almost surely, 2^526521253 is an apocalyptic number.

It is an amenable number.

526521253 is a deficient number, since it is larger than the sum of its proper divisors (1).

526521253 is an equidigital number, since it uses as much as digits as its factorization.

526521253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18000, while the sum is 31.

The square root of 526521253 is about 22946.0509238518. The cubic root of 526521253 is about 807.4927567588.

Adding to 526521253 its reverse (352125625), we get a palindrome (878646878).

The spelling of 526521253 in words is "five hundred twenty-six million, five hundred twenty-one thousand, two hundred fifty-three".