526520545 has 8 divisors (see below), whose sum is σ = 648901224. Its totient is φ = 409832064.

The previous prime is 526520479. The next prime is 526520557. The reversal of 526520545 is 545025625.

It can be written as a sum of positive squares in 4 ways, for example, as 313856656 + 212663889 = 17716^2 + 14583^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 526520545 - 2²³ = 518131937 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 526520545.

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 7 ways as a sum of consecutive naturals, for example, 1422844 + ... + 1423213.

It is an arithmetic number, because the mean of its divisors is an integer number (81112653).

Almost surely, 2^526520545 is an apocalyptic number.

It is an amenable number.

526520545 is a deficient number, since it is larger than the sum of its proper divisors (122380679).

526520545 is a wasteful number, since it uses less digits than its factorization.

526520545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2846099.

The product of its (nonzero) digits is 60000, while the sum is 34.

The square root of 526520545 is about 22946.0354963554. The cubic root of 526520545 is about 807.4923948202.

The spelling of 526520545 in words is "five hundred twenty-six million, five hundred twenty thousand, five hundred forty-five".