525463613 has 2 divisors, whose sum is σ = 525463614. Its totient is φ = 525463612.

The previous prime is 525463579. The next prime is 525463649. The reversal of 525463613 is 316364525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 492262969 + 33200644 = 22187^2 + 5762^2 .

It is a cyclic number.

It is not a de Polignac number, because 525463613 - 2²⁰ = 524415037 is a prime.

It is a super-2 number, since 2×525463613² = 552224017174027538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (525460613) 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, 262731806 + 262731807.

It is an arithmetic number, because the mean of its divisors is an integer number (262731807).

Almost surely, 2^525463613 is an apocalyptic number.

It is an amenable number.

525463613 is a deficient number, since it is larger than the sum of its proper divisors (1).

525463613 is an equidigital number, since it uses as much as digits as its factorization.

525463613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 35.

The square root of 525463613 is about 22922.9931073584. The cubic root of 525463613 is about 806.9517155270.

The spelling of 525463613 in words is "five hundred twenty-five million, four hundred sixty-three thousand, six hundred thirteen".