523025513 has 2 divisors, whose sum is σ = 523025514. Its totient is φ = 523025512.

The previous prime is 523025453. The next prime is 523025539. The reversal of 523025513 is 315520325.

It is an a-pointer prime, because the next prime (523025539) can be obtained adding 523025513 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 522945424 + 80089 = 22868^2 + 283^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523025513 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (523025563) 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, 261512756 + 261512757.

It is an arithmetic number, because the mean of its divisors is an integer number (261512757).

Almost surely, 2^523025513 is an apocalyptic number.

It is an amenable number.

523025513 is a deficient number, since it is larger than the sum of its proper divisors (1).

523025513 is an equidigital number, since it uses as much as digits as its factorization.

523025513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 523025513 is about 22869.7510480547. The cubic root of 523025513 is about 805.7017211158.

Adding to 523025513 its reverse (315520325), we get a palindrome (838545838).

The spelling of 523025513 in words is "five hundred twenty-three million, twenty-five thousand, five hundred thirteen".