512265222 has 160 divisors (see below), whose sum is σ = 1397056320. Its totient is φ = 137168640.

The previous prime is 512265197. The next prime is 512265239. The reversal of 512265222 is 222562215.

512265222 is a `hidden beast` number, since 5 + 1 + 2 + 2 + 652 + 2 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1216572 + ... + 1216992.

It is an arithmetic number, because the mean of its divisors is an integer number (8731602).

Almost surely, 2^512265222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 512265222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (698528160).

512265222 is an abundant number, since it is smaller than the sum of its proper divisors (884791098).

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

512265222 is a wasteful number, since it uses less digits than its factorization.

512265222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508 (or 499 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 512265222 is about 22633.2768727818. The cubic root of 512265222 is about 800.1381126131.

The spelling of 512265222 in words is "five hundred twelve million, two hundred sixty-five thousand, two hundred twenty-two".