525435257 has 2 divisors, whose sum is σ = 525435258. Its totient is φ = 525435256.

The previous prime is 525435223. The next prime is 525435283. The reversal of 525435257 is 752534525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 366952336 + 158482921 = 19156^2 + 12589^2 .

It is a cyclic number.

It is not a de Polignac number, because 525435257 - 2¹² = 525431161 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 525435257.

It is not a weakly prime, because it can be changed into another prime (525435457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262717628 + 262717629.

It is an arithmetic number, because the mean of its divisors is an integer number (262717629).

Almost surely, 2^525435257 is an apocalyptic number.

It is an amenable number.

525435257 is a deficient number, since it is larger than the sum of its proper divisors (1).

525435257 is an equidigital number, since it uses as much as digits as its factorization.

525435257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 210000, while the sum is 38.

The square root of 525435257 is about 22922.3745933967. The cubic root of 525435257 is about 806.9371998791.

The spelling of 525435257 in words is "five hundred twenty-five million, four hundred thirty-five thousand, two hundred fifty-seven".