552312256340 has 72 divisors (see below), whose sum is σ = 1263460343040. Its totient is φ = 202709330304.

The previous prime is 552312256333. The next prime is 552312256343. The reversal of 552312256340 is 43652213255.

It is a junction number, because it is equal to n+sod(n) for n = 552312256294 and 552312256303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552312256343) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75221 + ... + 1053699.

It is an arithmetic number, because the mean of its divisors is an integer number (17548060320).

Almost surely, 2^552312256340 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 552312256340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (631730171520).

552312256340 is an abundant number, since it is smaller than the sum of its proper divisors (711148086700).

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

552312256340 is a wasteful number, since it uses less digits than its factorization.

552312256340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978681 (or 978666 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 38.

Adding to 552312256340 its reverse (43652213255), we get a palindrome (595964469595).

The spelling of 552312256340 in words is "five hundred fifty-two billion, three hundred twelve million, two hundred fifty-six thousand, three hundred forty".