550709978 has 32 divisors (see below), whose sum is σ = 1049502720. Its totient is φ = 210833280.

The previous prime is 550709977. The next prime is 550709989. The reversal of 550709978 is 879907055.

It is not an unprimeable number, because it can be changed into a prime (550709977) 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, 43163 + ... + 54446.

It is an arithmetic number, because the mean of its divisors is an integer number (32796960).

Almost surely, 2^550709978 is an apocalyptic number.

550709978 is a deficient number, since it is larger than the sum of its proper divisors (498792742).

550709978 is a wasteful number, since it uses less digits than its factorization.

550709978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97662.

The product of its (nonzero) digits is 793800, while the sum is 50.

The square root of 550709978 is about 23467.2106991862. The cubic root of 550709978 is about 819.6736645139.

The spelling of 550709978 in words is "five hundred fifty million, seven hundred nine thousand, nine hundred seventy-eight".