52611521526 has 24 divisors (see below), whose sum is σ = 114046488504. Its totient is φ = 17528734080.

The previous prime is 52611521509. The next prime is 52611521527. The reversal of 52611521526 is 62512511625.

52611521526 is a `hidden beast` number, since 5 + 2 + 611 + 5 + 2 + 15 + 26 = 666.

It is a super-2 number, since 2×52611521526² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52611521527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 664816 + ... + 739731.

It is an arithmetic number, because the mean of its divisors is an integer number (4751937021).

Almost surely, 2^52611521526 is an apocalyptic number.

52611521526 is an abundant number, since it is smaller than the sum of its proper divisors (61434966978).

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

52611521526 is a wasteful number, since it uses less digits than its factorization.

52611521526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406636 (or 1406633 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

Subtracting 52611521526 from its reverse (62512511625), we obtain a palindrome (9900990099).

The spelling of 52611521526 in words is "fifty-two billion, six hundred eleven million, five hundred twenty-one thousand, five hundred twenty-six".