5312778 has 16 divisors (see below), whose sum is σ = 10655040. Its totient is φ = 1766016.

The previous prime is 5312777. The next prime is 5312803. The reversal of 5312778 is 8772135.

It is a super-2 number, since 2×5312778² = 56451220154568, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5312777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1626 + ... + 3642.

It is an arithmetic number, because the mean of its divisors is an integer number (665940).

Almost surely, 2^5312778 is an apocalyptic number.

5312778 is an abundant number, since it is smaller than the sum of its proper divisors (5342262).

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

5312778 is a wasteful number, since it uses less digits than its factorization.

5312778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2461.

The product of its digits is 11760, while the sum is 33.

The square root of 5312778 is about 2304.9464202016. The cubic root of 5312778 is about 174.4913447430.

The spelling of 5312778 in words is "five million, three hundred twelve thousand, seven hundred seventy-eight".