525093389 has 2 divisors, whose sum is σ = 525093390. Its totient is φ = 525093388.

The previous prime is 525093379. The next prime is 525093391. The reversal of 525093389 is 983390525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 405015625 + 120077764 = 20125^2 + 10958^2 .

It is a cyclic number.

It is not a de Polignac number, because 525093389 - 2⁸ = 525093133 is a prime.

Together with 525093391, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (525093319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262546694 + 262546695.

It is an arithmetic number, because the mean of its divisors is an integer number (262546695).

Almost surely, 2^525093389 is an apocalyptic number.

It is an amenable number.

525093389 is a deficient number, since it is larger than the sum of its proper divisors (1).

525093389 is an equidigital number, since it uses as much as digits as its factorization.

525093389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 291600, while the sum is 44.

The square root of 525093389 is about 22914.9162992144. The cubic root of 525093389 is about 806.7621539819.

The spelling of 525093389 in words is "five hundred twenty-five million, ninety-three thousand, three hundred eighty-nine".