5011721 has 16 divisors (see below), whose sum is σ = 5963328. Its totient is φ = 4152000.

The previous prime is 5011661. The next prime is 5011729. The reversal of 5011721 is 1271105.

5011721 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5011721 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5011721.

It is not an unprimeable number, because it can be changed into a prime (5011729) 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, 14270 + ... + 14616.

It is an arithmetic number, because the mean of its divisors is an integer number (372708).

Almost surely, 2^5011721 is an apocalyptic number.

It is an amenable number.

5011721 is a deficient number, since it is larger than the sum of its proper divisors (951607).

5011721 is a wasteful number, since it uses less digits than its factorization.

5011721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472.

The product of its (nonzero) digits is 70, while the sum is 17.

The square root of 5011721 is about 2238.6873385982. The cubic root of 5011721 is about 171.1311079152.

Adding to 5011721 its reverse (1271105), we get a palindrome (6282826).

It can be divided in two parts, 501 and 1721, that added together give a palindrome (2222).

The spelling of 5011721 in words is "five million, eleven thousand, seven hundred twenty-one".