523056333420 has 144 divisors (see below), whose sum is σ = 1631857919328. Its totient is φ = 135514321920.

The previous prime is 523056333413. The next prime is 523056333463. The reversal of 523056333420 is 24333650325.

523056333420 is a `hidden beast` number, since 5 + 2 + 305 + 6 + 3 + 3 + 342 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4545232 + ... + 4658888.

It is an arithmetic number, because the mean of its divisors is an integer number (11332346662).

Almost surely, 2^523056333420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 523056333420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (815928959664).

523056333420 is an abundant number, since it is smaller than the sum of its proper divisors (1108801585908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

523056333420 is a wasteful number, since it uses less digits than its factorization.

523056333420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114400 (or 114395 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 36.

Adding to 523056333420 its reverse (24333650325), we get a palindrome (547389983745).

The spelling of 523056333420 in words is "five hundred twenty-three billion, fifty-six million, three hundred thirty-three thousand, four hundred twenty".