550894509 has 12 divisors (see below), whose sum is σ = 868076352. Its totient is φ = 333875400.

The previous prime is 550894507. The next prime is 550894511. The reversal of 550894509 is 905498055.

550894509 is a `hidden beast` number, since 5 + 50 + 8 + 94 + 509 = 666.

It is an interprime number because it is at equal distance from previous prime (550894507) and next prime (550894511).

It is not a de Polignac number, because 550894509 - 2¹ = 550894507 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550894507) 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, 2782197 + ... + 2782394.

It is an arithmetic number, because the mean of its divisors is an integer number (72339696).

Almost surely, 2^550894509 is an apocalyptic number.

It is an amenable number.

550894509 is a deficient number, since it is larger than the sum of its proper divisors (317181843).

550894509 is a wasteful number, since it uses less digits than its factorization.

550894509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5564608 (or 5564605 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 45.

The square root of 550894509 is about 23471.1420472034. The cubic root of 550894509 is about 819.7652059277.

The spelling of 550894509 in words is "five hundred fifty million, eight hundred ninety-four thousand, five hundred nine".