5256215213 has 4 divisors (see below), whose sum is σ = 5256567360. Its totient is φ = 5255863068.

The previous prime is 5256215201. The next prime is 5256215221. The reversal of 5256215213 is 3125126525.

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 5256215213 - 2⁶ = 5256215149 is a prime.

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 5256215213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5256218213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152645 + ... + 183882.

It is an arithmetic number, because the mean of its divisors is an integer number (1314141840).

Almost surely, 2^5256215213 is an apocalyptic number.

It is an amenable number.

5256215213 is a deficient number, since it is larger than the sum of its proper divisors (352147).

5256215213 is a wasteful number, since it uses less digits than its factorization.

5256215213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352146.

The product of its digits is 18000, while the sum is 32.

The square root of 5256215213 is about 72499.7600892582. The cubic root of 5256215213 is about 1738.6989010527.

The spelling of 5256215213 in words is "five billion, two hundred fifty-six million, two hundred fifteen thousand, two hundred thirteen".