223520212552 has 48 divisors (see below), whose sum is σ = 518650050240. Its totient is φ = 88425574848.

The previous prime is 223520212523. The next prime is 223520212571. The reversal of 223520212552 is 255212025322.

It is a happy number.

It is a super-2 number, since 2×223520212552² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11799508 + ... + 11818435.

It is an arithmetic number, because the mean of its divisors is an integer number (10805209380).

Almost surely, 2^223520212552 is an apocalyptic number.

It is an amenable number.

223520212552 is an abundant number, since it is smaller than the sum of its proper divisors (295129837688).

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

223520212552 is a wasteful number, since it uses less digits than its factorization.

223520212552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23617982 (or 23617965 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 223520212552 its reverse (255212025322), we get a palindrome (478732237874).

The spelling of 223520212552 in words is "two hundred twenty-three billion, five hundred twenty million, two hundred twelve thousand, five hundred fifty-two".