55279850 has 24 divisors (see below), whose sum is σ = 105602988. Its totient is φ = 21513600.

The previous prime is 55279843. The next prime is 55279867. The reversal of 55279850 is 5897255.

It can be written as a sum of positive squares in 6 ways, for example, as 20079361 + 35200489 = 4481^2 + 5933^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55279798 and 55279807.

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, 13091 + ... + 16790.

Almost surely, 2^55279850 is an apocalyptic number.

55279850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55279850 is a deficient number, since it is larger than the sum of its proper divisors (50323138).

55279850 is a wasteful number, since it uses less digits than its factorization.

55279850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29930 (or 29925 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 41.

The square root of 55279850 is about 7435.0420308160. The cubic root of 55279850 is about 380.9391589781.

The spelling of 55279850 in words is "fifty-five million, two hundred seventy-nine thousand, eight hundred fifty".