5278126 has 32 divisors (see below), whose sum is σ = 9752832. Its totient is φ = 2090880.

The previous prime is 5278099. The next prime is 5278127. The reversal of 5278126 is 6218725.

It is a super-2 number, since 2×5278126² = 55717228143752, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5278127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15781 + ... + 16111.

It is an arithmetic number, because the mean of its divisors is an integer number (304776).

Almost surely, 2^5278126 is an apocalyptic number.

5278126 is the 1876-th pentagonal number.

5278126 is a deficient number, since it is larger than the sum of its proper divisors (4474706).

5278126 is a wasteful number, since it uses less digits than its factorization.

5278126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424.

The product of its digits is 6720, while the sum is 31.

The square root of 5278126 is about 2297.4172455172. The cubic root of 5278126 is about 174.1111501921. Note that the first 4 decimals are identical.

The spelling of 5278126 in words is "five million, two hundred seventy-eight thousand, one hundred twenty-six".