550115564 has 36 divisors (see below), whose sum is σ = 1010331000. Its totient is φ = 262067520.

The previous prime is 550115561. The next prime is 550115581. The reversal of 550115564 is 465511055.

It is a self number, because there is not a number n which added to its sum of digits gives 550115564.

It is not an unprimeable number, because it can be changed into a prime (550115561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1055624 + ... + 1056144.

It is an arithmetic number, because the mean of its divisors is an integer number (28064750).

Almost surely, 2^550115564 is an apocalyptic number.

It is an amenable number.

550115564 is a deficient number, since it is larger than the sum of its proper divisors (460215436).

550115564 is a wasteful number, since it uses less digits than its factorization.

550115564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070 (or 1045 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 32.

The square root of 550115564 is about 23454.5425024663. The cubic root of 550115564 is about 819.3786508507.

The spelling of 550115564 in words is "five hundred fifty million, one hundred fifteen thousand, five hundred sixty-four".