5190021 has 32 divisors (see below), whose sum is σ = 8268800. Its totient is φ = 3207600.

The previous prime is 5190011. The next prime is 5190023. The reversal of 5190021 is 1200915.

It is not a de Polignac number, because 5190021 - 2⁶ = 5189957 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5189976 and 5190003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5190023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34296 + ... + 34446.

It is an arithmetic number, because the mean of its divisors is an integer number (258400).

Almost surely, 2^5190021 is an apocalyptic number.

It is an amenable number.

5190021 is a deficient number, since it is larger than the sum of its proper divisors (3078779).

5190021 is a wasteful number, since it uses less digits than its factorization.

5190021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 5190021 is about 2278.1617589627. The cubic root of 5190021 is about 173.1369270239.

Adding to 5190021 its reverse (1200915), we get a palindrome (6390936).

The spelling of 5190021 in words is "five million, one hundred ninety thousand, twenty-one".