526520064 has 144 divisors (see below), whose sum is σ = 1645403648. Its totient is φ = 146313216.

The previous prime is 526520063. The next prime is 526520083. The reversal of 526520064 is 460025625.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (526520063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197589 + ... + 200235.

Almost surely, 2^526520064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 526520064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (822701824).

526520064 is an abundant number, since it is smaller than the sum of its proper divisors (1118883584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

526520064 is a wasteful number, since it uses less digits than its factorization.

526520064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2710 (or 2696 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 526520064 is about 22946.0250152396. The cubic root of 526520064 is about 807.4921489267.

Adding to 526520064 its reverse (460025625), we get a palindrome (986545689).

The spelling of 526520064 in words is "five hundred twenty-six million, five hundred twenty thousand, sixty-four".