5209154613 has 12 divisors (see below), whose sum is σ = 8103129580. Its totient is φ = 3205633536.

The previous prime is 5209154579. The next prime is 5209154623. The reversal of 5209154613 is 3164519025.

5209154613 is a `hidden beast` number, since 5 + 20 + 9 + 15 + 4 + 613 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 483692049 + 4725462564 = 21993^2 + 68742^2 .

It is not a de Polignac number, because 5209154613 - 2⁶ = 5209154549 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5209154623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22261228 + ... + 22261461.

Almost surely, 2^5209154613 is an apocalyptic number.

It is an amenable number.

5209154613 is a deficient number, since it is larger than the sum of its proper divisors (2893974967).

5209154613 is a wasteful number, since it uses less digits than its factorization.

5209154613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44522708 (or 44522705 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 5209154613 is about 72174.4734168529. The cubic root of 5209154613 is about 1733.4942920506.

The spelling of 5209154613 in words is "five billion, two hundred nine million, one hundred fifty-four thousand, six hundred thirteen".