525523233505 has 4 divisors (see below), whose sum is σ = 630627880212. Its totient is φ = 420418586800.

The previous prime is 525523233479. The next prime is 525523233527. The reversal of 525523233505 is 505332325525.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 91496570256 + 434026663249 = 302484^2 + 658807^2 .

It is not a de Polignac number, because 525523233505 - 2¹³ = 525523225313 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52552323346 + ... + 52552323355.

It is an arithmetic number, because the mean of its divisors is an integer number (157656970053).

Almost surely, 2^525523233505 is an apocalyptic number.

It is an amenable number.

525523233505 is a deficient number, since it is larger than the sum of its proper divisors (105104646707).

525523233505 is a wasteful number, since it uses less digits than its factorization.

525523233505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105104646706.

The product of its (nonzero) digits is 675000, while the sum is 40.

The spelling of 525523233505 in words is "five hundred twenty-five billion, five hundred twenty-three million, two hundred thirty-three thousand, five hundred five".