523002532172 has 12 divisors (see below), whose sum is σ = 919853701200. Its totient is φ = 260187188976.

The previous prime is 523002532153. The next prime is 523002532187. The reversal of 523002532172 is 271235200325.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328518383 + ... + 328519974.

It is an arithmetic number, because the mean of its divisors is an integer number (76654475100).

Almost surely, 2^523002532172 is an apocalyptic number.

It is an amenable number.

523002532172 is a deficient number, since it is larger than the sum of its proper divisors (396851169028).

523002532172 is a wasteful number, since it uses less digits than its factorization.

523002532172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657038560 (or 657038558 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 32.

Adding to 523002532172 its reverse (271235200325), we get a palindrome (794237732497).

The spelling of 523002532172 in words is "five hundred twenty-three billion, two million, five hundred thirty-two thousand, one hundred seventy-two".