552845909 has 16 divisors (see below), whose sum is σ = 711499776. Its totient is φ = 416890800.

The previous prime is 552845873. The next prime is 552845911. The reversal of 552845909 is 909548255.

It is a cyclic number.

It is not a de Polignac number, because 552845909 - 2¹² = 552841813 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552845939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113417 + ... + 118190.

It is an arithmetic number, because the mean of its divisors is an integer number (44468736).

Almost surely, 2^552845909 is an apocalyptic number.

It is an amenable number.

552845909 is a deficient number, since it is larger than the sum of its proper divisors (158653867).

552845909 is a wasteful number, since it uses less digits than its factorization.

552845909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231656.

The product of its (nonzero) digits is 648000, while the sum is 47.

The square root of 552845909 is about 23512.6754964211. The cubic root of 552845909 is about 820.7320000400.

The spelling of 552845909 in words is "five hundred fifty-two million, eight hundred forty-five thousand, nine hundred nine".