550040771 has 4 divisors (see below), whose sum is σ = 628618032. Its totient is φ = 471463512.

The previous prime is 550040741. The next prime is 550040819. The reversal of 550040771 is 177040055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 177040055 = 5 ⋅35408011.

It is a cyclic number.

It is not a de Polignac number, because 550040771 - 2¹⁰ = 550039747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550040741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39288620 + ... + 39288633.

It is an arithmetic number, because the mean of its divisors is an integer number (157154508).

Almost surely, 2^550040771 is an apocalyptic number.

550040771 is a deficient number, since it is larger than the sum of its proper divisors (78577261).

550040771 is an equidigital number, since it uses as much as digits as its factorization.

550040771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78577260.

The product of its (nonzero) digits is 4900, while the sum is 29.

The square root of 550040771 is about 23452.9480236494. The cubic root of 550040771 is about 819.3415152807.

The spelling of 550040771 in words is "five hundred fifty million, forty thousand, seven hundred seventy-one".