525545513 has 2 divisors, whose sum is σ = 525545514. Its totient is φ = 525545512.

The previous prime is 525545483. The next prime is 525545533. The reversal of 525545513 is 315545525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 272481049 + 253064464 = 16507^2 + 15908^2 .

It is a cyclic number.

It is not a de Polignac number, because 525545513 - 2²² = 521351209 is a prime.

It is not a weakly prime, because it can be changed into another prime (525545533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262772756 + 262772757.

It is an arithmetic number, because the mean of its divisors is an integer number (262772757).

Almost surely, 2^525545513 is an apocalyptic number.

It is an amenable number.

525545513 is a deficient number, since it is larger than the sum of its proper divisors (1).

525545513 is an equidigital number, since it uses as much as digits as its factorization.

525545513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75000, while the sum is 35.

The square root of 525545513 is about 22924.7794536829. The cubic root of 525545513 is about 806.9936378160.

The spelling of 525545513 in words is "five hundred twenty-five million, five hundred forty-five thousand, five hundred thirteen".