552661520 has 40 divisors (see below), whose sum is σ = 1299392280. Its totient is φ = 218577920.

The previous prime is 552661513. The next prime is 552661523. The reversal of 552661520 is 25166255.

It can be written as a sum of positive squares in 4 ways, for example, as 29899024 + 522762496 = 5468^2 + 22864^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (552661523) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 31691 + ... + 45930.

It is an arithmetic number, because the mean of its divisors is an integer number (32484807).

Almost surely, 2^552661520 is an apocalyptic number.

It is an amenable number.

552661520 is an abundant number, since it is smaller than the sum of its proper divisors (746730760).

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

552661520 is a wasteful number, since it uses less digits than its factorization.

552661520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77723 (or 77717 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 552661520 is about 23508.7541141593. The cubic root of 552661520 is about 820.6407444851.

The spelling of 552661520 in words is "five hundred fifty-two million, six hundred sixty-one thousand, five hundred twenty".