552212540 has 72 divisors (see below), whose sum is σ = 1282992480. Its totient is φ = 199492480.

The previous prime is 552212503. The next prime is 552212569. The reversal of 552212540 is 45212255.

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, 418001 + ... + 419319.

It is an arithmetic number, because the mean of its divisors is an integer number (17819340).

Almost surely, 2^552212540 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 552212540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (641496240).

552212540 is an abundant number, since it is smaller than the sum of its proper divisors (730779940).

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

552212540 is a wasteful number, since it uses less digits than its factorization.

552212540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523 (or 1510 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 552212540 is about 23499.2029652071. The cubic root of 552212540 is about 820.4184558634.

Adding to 552212540 its reverse (45212255), we get a palindrome (597424795).

The spelling of 552212540 in words is "five hundred fifty-two million, two hundred twelve thousand, five hundred forty".