523120220 has 24 divisors (see below), whose sum is σ = 1255488864. Its totient is φ = 179355456.

The previous prime is 523120207. The next prime is 523120223. The reversal of 523120220 is 22021325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523120223) 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 7 ways as a sum of consecutive naturals, for example, 1868147 + ... + 1868426.

It is an arithmetic number, because the mean of its divisors is an integer number (52312036).

Almost surely, 2^523120220 is an apocalyptic number.

It is an amenable number.

523120220 is an abundant number, since it is smaller than the sum of its proper divisors (732368644).

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

523120220 is a wasteful number, since it uses less digits than its factorization.

523120220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3736589 (or 3736587 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 523120220 is about 22871.8215278102. The cubic root of 523120220 is about 805.7503490736.

Adding to 523120220 its reverse (22021325), we get a palindrome (545141545).

The spelling of 523120220 in words is "five hundred twenty-three million, one hundred twenty thousand, two hundred twenty".