5213210561 has 4 divisors (see below), whose sum is σ = 5614226772. Its totient is φ = 4812194352.

The previous prime is 5213210533. The next prime is 5213210603. The reversal of 5213210561 is 1650123125.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3393761536 + 1819449025 = 58256^2 + 42655^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5213210561 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 5213210561.

It is not an unprimeable number, because it can be changed into a prime (5213210501) 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, 200508086 + ... + 200508111.

It is an arithmetic number, because the mean of its divisors is an integer number (1403556693).

Almost surely, 2^5213210561 is an apocalyptic number.

It is an amenable number.

5213210561 is a deficient number, since it is larger than the sum of its proper divisors (401016211).

5213210561 is a wasteful number, since it uses less digits than its factorization.

5213210561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401016210.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 5213210561 is about 72202.5661663074. The cubic root of 5213210561 is about 1733.9440860002.

Adding to 5213210561 its reverse (1650123125), we get a palindrome (6863333686).

The spelling of 5213210561 in words is "five billion, two hundred thirteen million, two hundred ten thousand, five hundred sixty-one".