526664965 has 4 divisors (see below), whose sum is σ = 631997964. Its totient is φ = 421331968.

The previous prime is 526664953. The next prime is 526664987. The reversal of 526664965 is 569466625.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 237868929 + 288796036 = 15423^2 + 16994^2 .

It is a cyclic number.

It is not a de Polignac number, because 526664965 - 2⁷ = 526664837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52666492 + ... + 52666501.

It is an arithmetic number, because the mean of its divisors is an integer number (157999491).

Almost surely, 2^526664965 is an apocalyptic number.

It is an amenable number.

526664965 is a deficient number, since it is larger than the sum of its proper divisors (105332999).

526664965 is a wasteful number, since it uses less digits than its factorization.

526664965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105332998.

The product of its digits is 2332800, while the sum is 49.

The square root of 526664965 is about 22949.1822294390. The cubic root of 526664965 is about 807.5662174481.

The spelling of 526664965 in words is "five hundred twenty-six million, six hundred sixty-four thousand, nine hundred sixty-five".