5278166 has 4 divisors (see below), whose sum is σ = 7917252. Its totient is φ = 2639082.

The previous prime is 5278151. The next prime is 5278171. The reversal of 5278166 is 6618725.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1319540 + ... + 1319543.

It is an arithmetic number, because the mean of its divisors is an integer number (1979313).

Almost surely, 2^5278166 is an apocalyptic number.

5278166 is a deficient number, since it is larger than the sum of its proper divisors (2639086).

5278166 is a wasteful number, since it uses less digits than its factorization.

5278166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2639085.

The product of its digits is 20160, while the sum is 35.

The square root of 5278166 is about 2297.4259509286. The cubic root of 5278166 is about 174.1115900217. Note that the first 3 decimals are identical.

The spelling of 5278166 in words is "five million, two hundred seventy-eight thousand, one hundred sixty-six".