522155020 has 24 divisors (see below), whose sum is σ = 1122027984. Its totient is φ = 204004416.

The previous prime is 522154999. The next prime is 522155027. The reversal of 522155020 is 20551225.

It is a super-2 number, since 2×522155020² = 545291729822400800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 522154982 and 522155000.

It is not an unprimeable number, because it can be changed into a prime (522155027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302719 + ... + 304438.

It is an arithmetic number, because the mean of its divisors is an integer number (46751166).

Almost surely, 2^522155020 is an apocalyptic number.

It is an amenable number.

522155020 is an abundant number, since it is smaller than the sum of its proper divisors (599872964).

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

522155020 is a wasteful number, since it uses less digits than its factorization.

522155020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607209 (or 607207 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 522155020 is about 22850.7115862942. The cubic root of 522155020 is about 805.2544853369.

The spelling of 522155020 in words is "five hundred twenty-two million, one hundred fifty-five thousand, twenty".