5291645515 has 16 divisors (see below), whose sum is σ = 7074244800. Its totient is φ = 3772927872.

The previous prime is 5291645509. The next prime is 5291645543. The reversal of 5291645515 is 5155461925.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5291645515 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1401735 + ... + 1405504.

It is an arithmetic number, because the mean of its divisors is an integer number (442140300).

Almost surely, 2^5291645515 is an apocalyptic number.

5291645515 is a deficient number, since it is larger than the sum of its proper divisors (1782599285).

5291645515 is a wasteful number, since it uses less digits than its factorization.

5291645515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2807286.

The product of its digits is 270000, while the sum is 43.

The square root of 5291645515 is about 72743.6974245879. The cubic root of 5291645515 is about 1742.5968090073.

The spelling of 5291645515 in words is "five billion, two hundred ninety-one million, six hundred forty-five thousand, five hundred fifteen".