520442420250 has 64 divisors (see below), whose sum is σ = 1311886098432. Its totient is φ = 137410520000.

The previous prime is 520442420207. The next prime is 520442420287. The reversal of 520442420250 is 52024244025.

It is a super-2 number, since 2×520442420250² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3359514 + ... + 3511013.

It is an arithmetic number, because the mean of its divisors is an integer number (20498220288).

Almost surely, 2^520442420250 is an apocalyptic number.

520442420250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

520442420250 is an abundant number, since it is smaller than the sum of its proper divisors (791443678182).

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

520442420250 is a wasteful number, since it uses less digits than its factorization.

520442420250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6870648 (or 6870638 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 30.

Adding to 520442420250 its reverse (52024244025), we get a palindrome (572466664275).

The spelling of 520442420250 in words is "five hundred twenty billion, four hundred forty-two million, four hundred twenty thousand, two hundred fifty".