5213021 has 4 divisors (see below), whose sum is σ = 5686944. Its totient is φ = 4739100.

The previous prime is 5212993. The next prime is 5213023. The reversal of 5213021 is 1203125.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5213021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5212987 and 5213005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5213023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236945 + ... + 236966.

It is an arithmetic number, because the mean of its divisors is an integer number (1421736).

Almost surely, 2^5213021 is an apocalyptic number.

It is an amenable number.

5213021 is a deficient number, since it is larger than the sum of its proper divisors (473923).

5213021 is a wasteful number, since it uses less digits than its factorization.

5213021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473922.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 5213021 is about 2283.2041082654. The cubic root of 5213021 is about 173.3923069383.

Adding to 5213021 its reverse (1203125), we get a palindrome (6416146).

The spelling of 5213021 in words is "five million, two hundred thirteen thousand, twenty-one".