5111865 has 48 divisors (see below), whose sum is σ = 10108800. Its totient is φ = 2365440.

The previous prime is 5111837. The next prime is 5111879. The reversal of 5111865 is 5681115.

5111865 is nontrivially palindromic in base 2.

It is not a de Polignac number, because 5111865 - 2⁵ = 5111833 is a prime.

It is a super-2 number, since 2×5111865² = 52262327556450, which contains 22 as substring.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11161 + ... + 11609.

It is an arithmetic number, because the mean of its divisors is an integer number (210600).

Almost surely, 2^5111865 is an apocalyptic number.

5111865 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5111865 is a deficient number, since it is larger than the sum of its proper divisors (4996935).

5111865 is a wasteful number, since it uses less digits than its factorization.

5111865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494 (or 491 counting only the distinct ones).

The product of its digits is 1200, while the sum is 27.

The square root of 5111865 is about 2260.9433871727. The cubic root of 5111865 is about 172.2634438654.

The spelling of 5111865 in words is "five million, one hundred eleven thousand, eight hundred sixty-five".