552318749 has 4 divisors (see below), whose sum is σ = 565789980. Its totient is φ = 538847520.

The previous prime is 552318743. The next prime is 552318751. The reversal of 552318749 is 947813255.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 268632100 + 283686649 = 16390^2 + 16843^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-552318749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552318743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6735554 + ... + 6735635.

It is an arithmetic number, because the mean of its divisors is an integer number (141447495).

Almost surely, 2^552318749 is an apocalyptic number.

It is an amenable number.

552318749 is a deficient number, since it is larger than the sum of its proper divisors (13471231).

552318749 is a wasteful number, since it uses less digits than its factorization.

552318749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13471230.

The product of its digits is 302400, while the sum is 44.

The square root of 552318749 is about 23501.4626991598. The cubic root of 552318749 is about 820.4710504906.

The spelling of 552318749 in words is "five hundred fifty-two million, three hundred eighteen thousand, seven hundred forty-nine".