523104521 has 4 divisors (see below), whose sum is σ = 523219200. Its totient is φ = 522989844.

The previous prime is 523104493. The next prime is 523104529. The reversal of 523104521 is 125401325.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 523104521 - 2⁶ = 523104457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (523104529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50201 + ... + 59718.

It is an arithmetic number, because the mean of its divisors is an integer number (130804800).

Almost surely, 2^523104521 is an apocalyptic number.

It is an amenable number.

523104521 is a deficient number, since it is larger than the sum of its proper divisors (114679).

523104521 is a wasteful number, since it uses less digits than its factorization.

523104521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114678.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 523104521 is about 22871.4783300074. The cubic root of 523104521 is about 805.7422887203.

Adding to 523104521 its reverse (125401325), we get a palindrome (648505846).

The spelling of 523104521 in words is "five hundred twenty-three million, one hundred four thousand, five hundred twenty-one".