550244229977 has 4 divisors (see below), whose sum is σ = 592570709220. Its totient is φ = 507917750736.

The previous prime is 550244229971. The next prime is 550244229991. The reversal of 550244229977 is 779922442055.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41983600201 + 508260629776 = 204899^2 + 712924^2 .

It is a cyclic number.

It is not a de Polignac number, because 550244229977 - 2⁸ = 550244229721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550244229971) 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, 21163239602 + ... + 21163239627.

It is an arithmetic number, because the mean of its divisors is an integer number (148142677305).

Almost surely, 2^550244229977 is an apocalyptic number.

It is an amenable number.

550244229977 is a deficient number, since it is larger than the sum of its proper divisors (42326479243).

550244229977 is a wasteful number, since it uses less digits than its factorization.

550244229977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42326479242.

The product of its (nonzero) digits is 12700800, while the sum is 56.

The spelling of 550244229977 in words is "five hundred fifty billion, two hundred forty-four million, two hundred twenty-nine thousand, nine hundred seventy-seven".