553111989 has 8 divisors (see below), whose sum is σ = 742432800. Its totient is φ = 366266256.

The previous prime is 553111987. The next prime is 553112009. The reversal of 553111989 is 989111355.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 553111989 - 2¹ = 553111987 is a prime.

It is a super-2 number, since 2×553111989² = 611865744751072242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 553111989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553111987) 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 7 ways as a sum of consecutive naturals, for example, 618247 + ... + 619140.

It is an arithmetic number, because the mean of its divisors is an integer number (92804100).

Almost surely, 2^553111989 is an apocalyptic number.

It is an amenable number.

553111989 is a deficient number, since it is larger than the sum of its proper divisors (189320811).

553111989 is a wasteful number, since it uses less digits than its factorization.

553111989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237539.

The product of its digits is 48600, while the sum is 42.

The square root of 553111989 is about 23518.3330404176. Note that the first 3 decimals coincide. The cubic root of 553111989 is about 820.8636493486.

The spelling of 553111989 in words is "five hundred fifty-three million, one hundred eleven thousand, nine hundred eighty-nine".