550454681 has 24 divisors (see below), whose sum is σ = 676010880. Its totient is φ = 445671072.

The previous prime is 550454669. The next prime is 550454689. The reversal of 550454681 is 186454055.

It is a happy number.

It is not a de Polignac number, because 550454681 - 2⁶ = 550454617 is a prime.

It is a super-2 number, since 2×550454681² = 606000711669623522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (550454689) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 430415 + ... + 431691.

It is an arithmetic number, because the mean of its divisors is an integer number (28167120).

Almost surely, 2^550454681 is an apocalyptic number.

It is an amenable number.

550454681 is a deficient number, since it is larger than the sum of its proper divisors (125556199).

550454681 is a wasteful number, since it uses less digits than its factorization.

550454681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1773 (or 1766 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 38.

The square root of 550454681 is about 23461.7706279812. The cubic root of 550454681 is about 819.5469840587.

The spelling of 550454681 in words is "five hundred fifty million, four hundred fifty-four thousand, six hundred eighty-one".