350513120520 has 48 divisors (see below), whose sum is σ = 1139167642860. Its totient is φ = 93470165376.

The previous prime is 350513120471. The next prime is 350513120521. The reversal of 350513120520 is 25021315053.

It is a happy number.

350513120520 is a `hidden beast` number, since 3 + 5 + 0 + 5 + 13 + 120 + 520 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 318644444196 + 31868676324 = 564486^2 + 178518^2 .

It is not an unprimeable number, because it can be changed into a prime (350513120521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 486823419 + ... + 486824138.

Almost surely, 2^350513120520 is an apocalyptic number.

350513120520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

350513120520 is an abundant number, since it is smaller than the sum of its proper divisors (788654522340).

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

350513120520 is a wasteful number, since it uses less digits than its factorization.

350513120520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973647574 (or 973647567 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

Adding to 350513120520 its reverse (25021315053), we get a palindrome (375534435573).

The spelling of 350513120520 in words is "three hundred fifty billion, five hundred thirteen million, one hundred twenty thousand, five hundred twenty".