525016663 has 2 divisors, whose sum is σ = 525016664. Its totient is φ = 525016662.

The previous prime is 525016619. The next prime is 525016693. The reversal of 525016663 is 366610525.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-525016663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (525016693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262508331 + 262508332.

It is an arithmetic number, because the mean of its divisors is an integer number (262508332).

Almost surely, 2^525016663 is an apocalyptic number.

525016663 is a deficient number, since it is larger than the sum of its proper divisors (1).

525016663 is an equidigital number, since it uses as much as digits as its factorization.

525016663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 525016663 is about 22913.2420883645. The cubic root of 525016663 is about 806.7228577034.

The spelling of 525016663 in words is "five hundred twenty-five million, sixteen thousand, six hundred sixty-three".