5211613623 has 4 divisors (see below), whose sum is σ = 6948818168. Its totient is φ = 3474409080.

The previous prime is 5211613613. The next prime is 5211613637. The reversal of 5211613623 is 3263161125.

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

It is not a de Polignac number, because 5211613623 - 2⁹ = 5211613111 is a prime.

It is a super-2 number, since 2×5211613623² = 54321833110878372258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5211613613) 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, 868602268 + ... + 868602273.

It is an arithmetic number, because the mean of its divisors is an integer number (1737204542).

Almost surely, 2^5211613623 is an apocalyptic number.

5211613623 is a deficient number, since it is larger than the sum of its proper divisors (1737204545).

5211613623 is a wasteful number, since it uses less digits than its factorization.

5211613623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1737204544.

The product of its digits is 6480, while the sum is 30.

The square root of 5211613623 is about 72191.5065849162. The cubic root of 5211613623 is about 1733.7670176367.

Adding to 5211613623 its reverse (3263161125), we get a palindrome (8474774748).

The spelling of 5211613623 in words is "five billion, two hundred eleven million, six hundred thirteen thousand, six hundred twenty-three".