5215540315 has 4 divisors (see below), whose sum is σ = 6258648384. Its totient is φ = 4172432248.

The previous prime is 5215540301. The next prime is 5215540331. The reversal of 5215540315 is 5130455125.

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

It is a cyclic number.

It is not a de Polignac number, because 5215540315 - 2²⁹ = 4678669403 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 521554027 + ... + 521554036.

It is an arithmetic number, because the mean of its divisors is an integer number (1564662096).

Almost surely, 2^5215540315 is an apocalyptic number.

5215540315 is a deficient number, since it is larger than the sum of its proper divisors (1043108069).

5215540315 is a wasteful number, since it uses less digits than its factorization.

5215540315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043108068.

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 5215540315 is about 72218.6978212706. The cubic root of 5215540315 is about 1734.2023440995.

The spelling of 5215540315 in words is "five billion, two hundred fifteen million, five hundred forty thousand, three hundred fifteen".