6315511355 has 4 divisors (see below), whose sum is σ = 7578613632. Its totient is φ = 5052409080.

The previous prime is 6315511303. The next prime is 6315511357. The reversal of 6315511355 is 5531155136.

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

It is not a de Polignac number, because 6315511355 - 2¹⁴ = 6315494971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6315511357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631551131 + ... + 631551140.

It is an arithmetic number, because the mean of its divisors is an integer number (1894653408).

Almost surely, 2^6315511355 is an apocalyptic number.

6315511355 is a deficient number, since it is larger than the sum of its proper divisors (1263102277).

6315511355 is a wasteful number, since it uses less digits than its factorization.

6315511355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263102276.

The product of its digits is 33750, while the sum is 35.

The square root of 6315511355 is about 79470.1916129564. The cubic root of 6315511355 is about 1848.4292832907.

The spelling of 6315511355 in words is "six billion, three hundred fifteen million, five hundred eleven thousand, three hundred fifty-five".