5111001 has 24 divisors (see below), whose sum is σ = 8712704. Its totient is φ = 2825280.

The previous prime is 5110997. The next prime is 5111011. The reversal of 5111001 is 1001115.

It is not a de Polignac number, because 5111001 - 2² = 5110997 is a prime.

It is a super-2 number, since 2×5111001² = 52244662444002, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (5111011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 645 + ... + 3261.

Almost surely, 2^5111001 is an apocalyptic number.

It is an amenable number.

5111001 is a deficient number, since it is larger than the sum of its proper divisors (3601703).

5111001 is a wasteful number, since it uses less digits than its factorization.

5111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2661 (or 2658 counting only the distinct ones).

The product of its (nonzero) digits is 5, while the sum is 9.

The square root of 5111001 is about 2260.7523084142. The cubic root of 5111001 is about 172.2537380795.

Adding to 5111001 its reverse (1001115), we get a palindrome (6112116).

The spelling of 5111001 in words is "five million, one hundred eleven thousand, one".