5215555500 has 48 divisors (see below), whose sum is σ = 15187701984. Its totient is φ = 1390814400.

The previous prime is 5215555481. The next prime is 5215555517. The reversal of 5215555500 is 55555125.

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, 1737019 + ... + 1740018.

It is an arithmetic number, because the mean of its divisors is an integer number (316410458).

Almost surely, 2^5215555500 is an apocalyptic number.

5215555500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5215555500 is an abundant number, since it is smaller than the sum of its proper divisors (9972146484).

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

5215555500 is a wasteful number, since it uses less digits than its factorization.

5215555500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3477059 (or 3477047 counting only the distinct ones).

The product of its (nonzero) digits is 31250, while the sum is 33.

The square root of 5215555500 is about 72218.8029532476. The cubic root of 5215555500 is about 1734.2040271362.

The spelling of 5215555500 in words is "five billion, two hundred fifteen million, five hundred fifty-five thousand, five hundred".