523780770529 has 3 divisors (see below), whose sum is σ = 523781494257. Its totient is φ = 523780046802.

The previous prime is 523780770481. The next prime is 523780770551. The reversal of 523780770529 is 925077087325.

The square root of 523780770529 is 723727.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 523780770529 - 2⁹ = 523780770017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 523780770529.

It is not an unprimeable number, because it can be changed into a prime (523780770589) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 361864 + ... + 1085590.

It is an arithmetic number, because the mean of its divisors is an integer number (174593831419).

Almost surely, 2^523780770529 is an apocalyptic number.

523780770529 is the 723727-th square number.

523780770529 is the 361864-th centered octagonal number.

It is an amenable number.

523780770529 is a deficient number, since it is larger than the sum of its proper divisors (723728).

523780770529 is an frugal number, since it uses more digits than its factorization.

523780770529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1447454 (or 723727 counting only the distinct ones).

The product of its (nonzero) digits is 7408800, while the sum is 55.

The spelling of 523780770529 in words is "five hundred twenty-three billion, seven hundred eighty million, seven hundred seventy thousand, five hundred twenty-nine".