552511043540 has 96 divisors (see below), whose sum is σ = 1232079206400. Its totient is φ = 207403315200.

The previous prime is 552511043537. The next prime is 552511043599. The reversal of 552511043540 is 45340115255.

It is a self number, because there is not a number n which added to its sum of digits gives 552511043540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 294044321 + ... + 294046199.

It is an arithmetic number, because the mean of its divisors is an integer number (12834158400).

Almost surely, 2^552511043540 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 552511043540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (616039603200).

552511043540 is an abundant number, since it is smaller than the sum of its proper divisors (679568162860).

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

552511043540 is a wasteful number, since it uses less digits than its factorization.

552511043540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3945 (or 3943 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

Adding to 552511043540 its reverse (45340115255), we get a palindrome (597851158795).

The spelling of 552511043540 in words is "five hundred fifty-two billion, five hundred eleven million, forty-three thousand, five hundred forty".