5213556909 has 24 divisors (see below), whose sum is σ = 8331021504. Its totient is φ = 3115224000.

The previous prime is 5213556853. The next prime is 5213556911. The reversal of 5213556909 is 9096553125.

5213556909 is a `hidden beast` number, since 5 + 2 + 1 + 3 + 556 + 90 + 9 = 666.

It is not a de Polignac number, because 5213556909 - 2²⁰ = 5212508333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5213556919) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 363832 + ... + 377889.

It is an arithmetic number, because the mean of its divisors is an integer number (347125896).

Almost surely, 2^5213556909 is an apocalyptic number.

It is an amenable number.

5213556909 is a deficient number, since it is larger than the sum of its proper divisors (3117464595).

5213556909 is a wasteful number, since it uses less digits than its factorization.

5213556909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741809 (or 741806 counting only the distinct ones).

The product of its (nonzero) digits is 364500, while the sum is 45.

The square root of 5213556909 is about 72204.9645730818. The cubic root of 5213556909 is about 1733.9824842681.

The spelling of 5213556909 in words is "five billion, two hundred thirteen million, five hundred fifty-six thousand, nine hundred nine".