550651478 has 24 divisors (see below), whose sum is σ = 921281088. Its totient is φ = 245373408.

The previous prime is 550651469. The next prime is 550651499. The reversal of 550651478 is 874156055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9275 + ... + 34457.

It is an arithmetic number, because the mean of its divisors is an integer number (38386712).

Almost surely, 2^550651478 is an apocalyptic number.

550651478 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

550651478 is a deficient number, since it is larger than the sum of its proper divisors (370629610).

550651478 is a wasteful number, since it uses less digits than its factorization.

550651478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25256 (or 25227 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 41.

The square root of 550651478 is about 23465.9642461161. The cubic root of 550651478 is about 819.6446397947.

The spelling of 550651478 in words is "five hundred fifty million, six hundred fifty-one thousand, four hundred seventy-eight".