523056333421 has 8 divisors (see below), whose sum is σ = 553929319224. Its totient is φ = 492195010560.

The previous prime is 523056333413. The next prime is 523056333463. The reversal of 523056333421 is 124333650325.

It can be written as a sum of positive squares in 4 ways, for example, as 66703392900 + 456352940521 = 258270^2 + 675539^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 523056333421 - 2³ = 523056333413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523056313421) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2823310 + ... + 3002863.

It is an arithmetic number, because the mean of its divisors is an integer number (69241164903).

Almost surely, 2^523056333421 is an apocalyptic number.

It is an amenable number.

523056333421 is a deficient number, since it is larger than the sum of its proper divisors (30872985803).

523056333421 is a wasteful number, since it uses less digits than its factorization.

523056333421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5831471.

The product of its (nonzero) digits is 194400, while the sum is 37.

Adding to 523056333421 its reverse (124333650325), we get a palindrome (647389983746).

The spelling of 523056333421 in words is "five hundred twenty-three billion, fifty-six million, three hundred thirty-three thousand, four hundred twenty-one".