552621204 has 60 divisors (see below), whose sum is σ = 1468396468. Its totient is φ = 181180800.

The previous prime is 552621191. The next prime is 552621211. The reversal of 552621204 is 402126255.

It can be written as a sum of positive squares in 2 ways, for example, as 62441604 + 490179600 = 7902^2 + 22140^2 .

It is a super-2 number, since 2×552621204² = 610780390220819232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5784 + ... + 33744.

Almost surely, 2^552621204 is an apocalyptic number.

552621204 is a gapful number since it is divisible by the number (54) 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 552621204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (734198234).

552621204 is an abundant number, since it is smaller than the sum of its proper divisors (915775264).

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

552621204 is a wasteful number, since it uses less digits than its factorization.

552621204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28038 (or 28027 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 552621204 is about 23507.8966307069. The cubic root of 552621204 is about 820.6207890780.

Adding to 552621204 its reverse (402126255), we get a palindrome (954747459).

The spelling of 552621204 in words is "five hundred fifty-two million, six hundred twenty-one thousand, two hundred four".