550075081 has 4 divisors (see below), whose sum is σ = 550287892. Its totient is φ = 549862272.

The previous prime is 550075079. The next prime is 550075117. The reversal of 550075081 is 180570055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 180570055 = 5 ⋅36114011.

It can be written as a sum of positive squares in 2 ways, for example, as 343175625 + 206899456 = 18525^2 + 14384^2 .

It is a cyclic number.

It is not a de Polignac number, because 550075081 - 2¹ = 550075079 is a prime.

It is a super-2 number, since 2×550075081² = 605165189474313122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550175081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102480 + ... + 107713.

It is an arithmetic number, because the mean of its divisors is an integer number (137571973).

Almost surely, 2^550075081 is an apocalyptic number.

It is an amenable number.

550075081 is a deficient number, since it is larger than the sum of its proper divisors (212811).

550075081 is a wasteful number, since it uses less digits than its factorization.

550075081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212810.

The product of its (nonzero) digits is 7000, while the sum is 31.

The square root of 550075081 is about 23453.6794767900. The cubic root of 550075081 is about 819.3585510015.

The spelling of 550075081 in words is "five hundred fifty million, seventy-five thousand, eighty-one".