552621366 has 56 divisors (see below), whose sum is σ = 1355853384. Its totient is φ = 167456160.

The previous prime is 552621359. The next prime is 552621383. The reversal of 552621366 is 663126255.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 552621366.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1191 + ... + 33266.

Almost surely, 2^552621366 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 552621366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (677926692).

552621366 is an abundant number, since it is smaller than the sum of its proper divisors (803232018).

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

552621366 is a wasteful number, since it uses less digits than its factorization.

552621366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34488 (or 34473 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 552621366 is about 23507.9000763573. The cubic root of 552621366 is about 820.6208692659.

The spelling of 552621366 in words is "five hundred fifty-two million, six hundred twenty-one thousand, three hundred sixty-six".