523104421 has 4 divisors (see below), whose sum is σ = 597833632. Its totient is φ = 448375212.

The previous prime is 523104419. The next prime is 523104431. The reversal of 523104421 is 124401325.

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 523104421 - 2¹ = 523104419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 523104392 and 523104401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523104431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37364595 + ... + 37364608.

It is an arithmetic number, because the mean of its divisors is an integer number (149458408).

Almost surely, 2^523104421 is an apocalyptic number.

It is an amenable number.

523104421 is a deficient number, since it is larger than the sum of its proper divisors (74729211).

523104421 is an equidigital number, since it uses as much as digits as its factorization.

523104421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74729210.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 523104421 is about 22871.4761438784. The cubic root of 523104421 is about 805.7422373767.

Adding to 523104421 its reverse (124401325), we get a palindrome (647505746).

The spelling of 523104421 in words is "five hundred twenty-three million, one hundred four thousand, four hundred twenty-one".