526506561 has 40 divisors (see below), whose sum is σ = 901517760. Its totient is φ = 299974752.

The previous prime is 526506553. The next prime is 526506581. The reversal of 526506561 is 165605625.

It is a happy number.

It is not a de Polignac number, because 526506561 - 2³ = 526506553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (526506521) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 223930 + ... + 226268.

It is an arithmetic number, because the mean of its divisors is an integer number (22537944).

Almost surely, 2^526506561 is an apocalyptic number.

It is an amenable number.

526506561 is a deficient number, since it is larger than the sum of its proper divisors (375011199).

526506561 is a wasteful number, since it uses less digits than its factorization.

526506561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2755 (or 2746 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 526506561 is about 22945.7307793846. The cubic root of 526506561 is about 807.4852459547.

The spelling of 526506561 in words is "five hundred twenty-six million, five hundred six thousand, five hundred sixty-one".