6215455500 has 48 divisors (see below), whose sum is σ = 18099410784. Its totient is φ = 1657454400.

The previous prime is 6215455487. The next prime is 6215455501. The reversal of 6215455500 is 55545126.

It is not an unprimeable number, because it can be changed into a prime (6215455501) 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, 2070319 + ... + 2073318.

It is an arithmetic number, because the mean of its divisors is an integer number (377071058).

Almost surely, 2^6215455500 is an apocalyptic number.

6215455500 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6215455500 is an abundant number, since it is smaller than the sum of its proper divisors (11883955284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6215455500 is a wasteful number, since it uses less digits than its factorization.

6215455500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4143659 (or 4143647 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 33.

The square root of 6215455500 is about 78838.1601764019. The cubic root of 6215455500 is about 1838.6157969274.

The spelling of 6215455500 in words is "six billion, two hundred fifteen million, four hundred fifty-five thousand, five hundred".