552621000 has 128 divisors (see below), whose sum is σ = 1799366400. Its totient is φ = 140940800.

The previous prime is 552620987. The next prime is 552621007. The reversal of 552621000 is 126255.

It is not an unprimeable number, because it can be changed into a prime (552621007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64996 + ... + 73004.

It is an arithmetic number, because the mean of its divisors is an integer number (14057550).

Almost surely, 2^552621000 is an apocalyptic number.

552621000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 552621000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (899683200).

552621000 is an abundant number, since it is smaller than the sum of its proper divisors (1246745400).

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

552621000 is a wasteful number, since it uses less digits than its factorization.

552621000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8056 (or 8042 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 552621000 is about 23507.8922917390. The cubic root of 552621000 is about 820.6206881007.

Adding to 552621000 its reverse (126255), we get a palindrome (552747255).

The spelling of 552621000 in words is "five hundred fifty-two million, six hundred twenty-one thousand".