6255540615 has 16 divisors (see below), whose sum is σ = 10010198016. Its totient is φ = 3335844000.

The previous prime is 6255540607. The next prime is 6255540617. The reversal of 6255540615 is 5160455526.

It is a happy number.

It is not a de Polignac number, because 6255540615 - 2³ = 6255540607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6255540617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110970 + ... + 157560.

It is an arithmetic number, because the mean of its divisors is an integer number (625637376).

Almost surely, 2^6255540615 is an apocalyptic number.

6255540615 is a deficient number, since it is larger than the sum of its proper divisors (3754657401).

6255540615 is a wasteful number, since it uses less digits than its factorization.

6255540615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55550.

The product of its (nonzero) digits is 180000, while the sum is 39.

The square root of 6255540615 is about 79091.9756675733. The cubic root of 6255540615 is about 1842.5599032262.

The spelling of 6255540615 in words is "six billion, two hundred fifty-five million, five hundred forty thousand, six hundred fifteen".