5213253421 has 4 divisors (see below), whose sum is σ = 5487635200. Its totient is φ = 4938871644.

The previous prime is 5213253403. The next prime is 5213253559. The reversal of 5213253421 is 1243523125.

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 not a de Polignac number, because 5213253421 - 2⁵ = 5213253389 is a prime.

It is a super-2 number, since 2×5213253421² = 54356022463136406482, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5213253421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5213253401) 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, 137190861 + ... + 137190898.

It is an arithmetic number, because the mean of its divisors is an integer number (1371908800).

Almost surely, 2^5213253421 is an apocalyptic number.

It is an amenable number.

5213253421 is a deficient number, since it is larger than the sum of its proper divisors (274381779).

5213253421 is a wasteful number, since it uses less digits than its factorization.

5213253421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274381778.

The product of its digits is 7200, while the sum is 28.

The square root of 5213253421 is about 72202.8629695527. The cubic root of 5213253421 is about 1733.9488378154.

Adding to 5213253421 its reverse (1243523125), we get a palindrome (6456776546).

The spelling of 5213253421 in words is "five billion, two hundred thirteen million, two hundred fifty-three thousand, four hundred twenty-one".