5178006 has 20 divisors (see below), whose sum is σ = 11602932. Its totient is φ = 1725948.

The previous prime is 5178001. The next prime is 5178007. The reversal of 5178006 is 6008715.

It is a super-2 number, since 2×5178006² = 53623492272072, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5178001) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 15820 + ... + 16143.

Almost surely, 2^5178006 is an apocalyptic number.

5178006 is an abundant number, since it is smaller than the sum of its proper divisors (6424926).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5178006 is a wasteful number, since it uses less digits than its factorization.

5178006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31977 (or 31968 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 5178006 is about 2275.5232365326. The cubic root of 5178006 is about 173.0032186689.

The spelling of 5178006 in words is "five million, one hundred seventy-eight thousand, six".