525005539 has 2 divisors, whose sum is σ = 525005540. Its totient is φ = 525005538.

The previous prime is 525005519. The next prime is 525005599. The reversal of 525005539 is 935500525.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-525005539 is a prime.

It is not a weakly prime, because it can be changed into another prime (525005519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262502769 + 262502770.

It is an arithmetic number, because the mean of its divisors is an integer number (262502770).

Almost surely, 2^525005539 is an apocalyptic number.

525005539 is a deficient number, since it is larger than the sum of its proper divisors (1).

525005539 is an equidigital number, since it uses as much as digits as its factorization.

525005539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33750, while the sum is 34.

The square root of 525005539 is about 22912.9993453498. Note that the first 3 decimals coincide. The cubic root of 525005539 is about 806.7171600757.

The spelling of 525005539 in words is "five hundred twenty-five million, five thousand, five hundred thirty-nine".