512522352261 has 24 divisors (see below), whose sum is σ = 766322746560. Its totient is φ = 338546662992.

The previous prime is 512522352191. The next prime is 512522352289. The reversal of 512522352261 is 162253225215.

512522352261 is a `hidden beast` number, since 5 + 1 + 2 + 52 + 23 + 522 + 61 = 666.

It is not a de Polignac number, because 512522352261 - 2¹⁵ = 512522319493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512522352361) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 478065 + ... + 1119638.

It is an arithmetic number, because the mean of its divisors is an integer number (31930114440).

Almost surely, 2^512522352261 is an apocalyptic number.

It is an amenable number.

512522352261 is a deficient number, since it is larger than the sum of its proper divisors (253800394299).

512522352261 is a wasteful number, since it uses less digits than its factorization.

512522352261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1597930 (or 1597815 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

Adding to 512522352261 its reverse (162253225215), we get a palindrome (674775577476).

The spelling of 512522352261 in words is "five hundred twelve billion, five hundred twenty-two million, three hundred fifty-two thousand, two hundred sixty-one".