525505879 has 2 divisors, whose sum is σ = 525505880. Its totient is φ = 525505878.

The previous prime is 525505859. The next prime is 525505891. The reversal of 525505879 is 978505525.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 525505879 - 2¹¹ = 525503831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (525505859) 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, 262752939 + 262752940.

It is an arithmetic number, because the mean of its divisors is an integer number (262752940).

Almost surely, 2^525505879 is an apocalyptic number.

525505879 is a deficient number, since it is larger than the sum of its proper divisors (1).

525505879 is an equidigital number, since it uses as much as digits as its factorization.

525505879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 630000, while the sum is 46.

The square root of 525505879 is about 22923.9150015873. The cubic root of 525505879 is about 806.9733508385.

The spelling of 525505879 in words is "five hundred twenty-five million, five hundred five thousand, eight hundred seventy-nine".