525263513 has 2 divisors, whose sum is σ = 525263514. Its totient is φ = 525263512.

The previous prime is 525263509. The next prime is 525263521. The reversal of 525263513 is 315362525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 514972249 + 10291264 = 22693^2 + 3208^2 .

It is a cyclic number.

It is not a de Polignac number, because 525263513 - 2² = 525263509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 525263513.

It is not a weakly prime, because it can be changed into another prime (525263593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262631756 + 262631757.

It is an arithmetic number, because the mean of its divisors is an integer number (262631757).

Almost surely, 2^525263513 is an apocalyptic number.

It is an amenable number.

525263513 is a deficient number, since it is larger than the sum of its proper divisors (1).

525263513 is an equidigital number, since it uses as much as digits as its factorization.

525263513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27000, while the sum is 32.

The square root of 525263513 is about 22918.6280784867. The cubic root of 525263513 is about 806.8492716819.

It can be divided in two parts, 5 and 25263513, that multiplied together give a triangular number (126317565 = T₁₅₈₉₄).

The spelling of 525263513 in words is "five hundred twenty-five million, two hundred sixty-three thousand, five hundred thirteen".