550459481 has 16 divisors (see below), whose sum is σ = 662473728. Its totient is φ = 450652800.

The previous prime is 550459463. The next prime is 550459489. The reversal of 550459481 is 184954055.

It is a de Polignac number, because none of the positive numbers 2^k-550459481 is a prime.

It is a super-2 number, since 2×550459481² = 606011280445578722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550459489) 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, 41081 + ... + 52806.

It is an arithmetic number, because the mean of its divisors is an integer number (41404608).

Almost surely, 2^550459481 is an apocalyptic number.

It is an amenable number.

550459481 is a deficient number, since it is larger than the sum of its proper divisors (112014247).

550459481 is a wasteful number, since it uses less digits than its factorization.

550459481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93952.

The product of its (nonzero) digits is 144000, while the sum is 41.

The square root of 550459481 is about 23461.8729218279. The cubic root of 550459481 is about 819.5493662192.

The spelling of 550459481 in words is "five hundred fifty million, four hundred fifty-nine thousand, four hundred eighty-one".