550487983 has 4 divisors (see below), whose sum is σ = 552791520. Its totient is φ = 548184448.

The previous prime is 550487941. The next prime is 550488019. The reversal of 550487983 is 389784055.

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

It is a cyclic number.

It is not a de Polignac number, because 550487983 - 2²¹ = 548390831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550487933) 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, 1151410 + ... + 1151887.

It is an arithmetic number, because the mean of its divisors is an integer number (138197880).

Almost surely, 2^550487983 is an apocalyptic number.

550487983 is a deficient number, since it is larger than the sum of its proper divisors (2303537).

550487983 is a wasteful number, since it uses less digits than its factorization.

550487983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2303536.

The product of its (nonzero) digits is 1209600, while the sum is 49.

The square root of 550487983 is about 23462.4803249784. The cubic root of 550487983 is about 819.5635110041.

The spelling of 550487983 in words is "five hundred fifty million, four hundred eighty-seven thousand, nine hundred eighty-three".