5218751 has 4 divisors (see below), whose sum is σ = 5317272. Its totient is φ = 5120232.

The previous prime is 5218729. The next prime is 5218793. The reversal of 5218751 is 1578125.

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

It is a cyclic number.

It is not a de Polignac number, because 5218751 - 2¹⁸ = 4956607 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5218721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49181 + ... + 49286.

It is an arithmetic number, because the mean of its divisors is an integer number (1329318).

Almost surely, 2^5218751 is an apocalyptic number.

5218751 is a deficient number, since it is larger than the sum of its proper divisors (98521).

5218751 is an equidigital number, since it uses as much as digits as its factorization.

5218751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98520.

The product of its digits is 2800, while the sum is 29.

The square root of 5218751 is about 2284.4585791824. The cubic root of 5218751 is about 173.4558129244.

The spelling of 5218751 in words is "five million, two hundred eighteen thousand, seven hundred fifty-one".