525122393 has 2 divisors, whose sum is σ = 525122394. Its totient is φ = 525122392.

The previous prime is 525122359. The next prime is 525122441. The reversal of 525122393 is 393221525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 475109209 + 50013184 = 21797^2 + 7072^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-525122393 is a prime.

It is not a weakly prime, because it can be changed into another prime (525122303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262561196 + 262561197.

It is an arithmetic number, because the mean of its divisors is an integer number (262561197).

Almost surely, 2^525122393 is an apocalyptic number.

It is an amenable number.

525122393 is a deficient number, since it is larger than the sum of its proper divisors (1).

525122393 is an equidigital number, since it uses as much as digits as its factorization.

525122393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16200, while the sum is 32.

The square root of 525122393 is about 22915.5491533587. The cubic root of 525122393 is about 806.7770077833. Note that the first 3 decimals are identical.

The spelling of 525122393 in words is "five hundred twenty-five million, one hundred twenty-two thousand, three hundred ninety-three".