550553890 has 16 divisors (see below), whose sum is σ = 998802432. Its totient is φ = 218487024.

The previous prime is 550553879. The next prime is 550553903. The reversal of 550553890 is 98355055.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215484 + ... + 218023.

It is an arithmetic number, because the mean of its divisors is an integer number (62425152).

Almost surely, 2^550553890 is an apocalyptic number.

550553890 is a deficient number, since it is larger than the sum of its proper divisors (448248542).

550553890 is a wasteful number, since it uses less digits than its factorization.

550553890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433641.

The product of its (nonzero) digits is 135000, while the sum is 40.

The square root of 550553890 is about 23463.8848019675. The cubic root of 550553890 is about 819.5962170264.

It can be divided in two parts, 5505 and 53890, that added together give a palindrome (59395).

The spelling of 550553890 in words is "five hundred fifty million, five hundred fifty-three thousand, eight hundred ninety".