511222252 has 12 divisors (see below), whose sum is σ = 895219416. Its totient is φ = 255445280.

The previous prime is 511222247. The next prime is 511222267. The reversal of 511222252 is 252222115.

It is a super-2 number, since 2×511222252² = 522696381879903008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34393 + ... + 46960.

It is an arithmetic number, because the mean of its divisors is an integer number (74601618).

Almost surely, 2^511222252 is an apocalyptic number.

It is an amenable number.

511222252 is a deficient number, since it is larger than the sum of its proper divisors (383997164).

511222252 is a wasteful number, since it uses less digits than its factorization.

511222252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82928 (or 82926 counting only the distinct ones).

The product of its digits is 800, while the sum is 22.

The square root of 511222252 is about 22610.2245013180. The cubic root of 511222252 is about 799.5947176341.

Adding to 511222252 its reverse (252222115), we get a palindrome (763444367).

The spelling of 511222252 in words is "five hundred eleven million, two hundred twenty-two thousand, two hundred fifty-two".