5011821 has 32 divisors (see below), whose sum is σ = 8035200. Its totient is φ = 3075840.

The previous prime is 5011817. The next prime is 5011829. The reversal of 5011821 is 1281105.

It is not a de Polignac number, because 5011821 - 2² = 5011817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5011794 and 5011803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5011829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27910 + ... + 28088.

It is an arithmetic number, because the mean of its divisors is an integer number (251100).

Almost surely, 2^5011821 is an apocalyptic number.

5011821 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

5011821 is a deficient number, since it is larger than the sum of its proper divisors (3023379).

5011821 is a wasteful number, since it uses less digits than its factorization.

5011821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 260 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 5011821 is about 2238.7096730036. The cubic root of 5011821 is about 171.1322461135.

Adding to 5011821 its reverse (1281105), we get a palindrome (6292926).

It can be divided in two parts, 5011 and 821, that added together give a cube (5832 = 18³).

The spelling of 5011821 in words is "five million, eleven thousand, eight hundred twenty-one".