5237666613 has 6 divisors (see below), whose sum is σ = 7565518454. Its totient is φ = 3491777736.

The previous prime is 5237666579. The next prime is 5237666627. The reversal of 5237666613 is 3166667325.

It can be written as a sum of positive squares in only one way, i.e., 3824432964 + 1413233649 = 61842^2 + 37593^2 .

It is not a de Polignac number, because 5237666613 - 2¹² = 5237662517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5237666633) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 290981470 + ... + 290981487.

Almost surely, 2^5237666613 is an apocalyptic number.

It is an amenable number.

5237666613 is a deficient number, since it is larger than the sum of its proper divisors (2327851841).

5237666613 is a wasteful number, since it uses less digits than its factorization.

5237666613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581962963 (or 581962960 counting only the distinct ones).

The product of its digits is 816480, while the sum is 45.

The square root of 5237666613 is about 72371.7252316124. The cubic root of 5237666613 is about 1736.6512653973.

The spelling of 5237666613 in words is "five billion, two hundred thirty-seven million, six hundred sixty-six thousand, six hundred thirteen".