552221615512 has 96 divisors (see below), whose sum is σ = 1213944732000. Its totient is φ = 234809487360.

The previous prime is 552221615503. The next prime is 552221615521. The reversal of 552221615512 is 215516122255.

It is an interprime number because it is at equal distance from previous prime (552221615503) and next prime (552221615521).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31139064 + ... + 31156792.

It is an arithmetic number, because the mean of its divisors is an integer number (12645257625).

Almost surely, 2^552221615512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 552221615512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (606972366000).

552221615512 is an abundant number, since it is smaller than the sum of its proper divisors (661723116488).

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

552221615512 is a wasteful number, since it uses less digits than its factorization.

552221615512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18369 (or 18358 counting only the distinct ones).

The product of its digits is 60000, while the sum is 37.

Adding to 552221615512 its reverse (215516122255), we get a palindrome (767737737767).

The spelling of 552221615512 in words is "five hundred fifty-two billion, two hundred twenty-one million, six hundred fifteen thousand, five hundred twelve".