512221325355 has 48 divisors (see below), whose sum is σ = 904473722880. Its totient is φ = 268111232064.

The previous prime is 512221325353. The next prime is 512221325381. The reversal of 512221325355 is 553523122215.

512221325355 is a `hidden beast` number, since 51 + 2 + 221 + 32 + 5 + 355 = 666.

It is not a de Polignac number, because 512221325355 - 2¹ = 512221325353 is a prime.

It is a super-2 number, since 2×512221325355² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (512221325351) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 162294 + ... + 1025076.

It is an arithmetic number, because the mean of its divisors is an integer number (18843202560).

Almost surely, 2^512221325355 is an apocalyptic number.

512221325355 is a deficient number, since it is larger than the sum of its proper divisors (392252397525).

512221325355 is a wasteful number, since it uses less digits than its factorization.

512221325355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863040 (or 863037 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The spelling of 512221325355 in words is "five hundred twelve billion, two hundred twenty-one million, three hundred twenty-five thousand, three hundred fifty-five".