215070500 has 48 divisors (see below), whose sum is σ = 494457600. Its totient is φ = 81496800.

The previous prime is 215070491. The next prime is 215070503. The reversal of 215070500 is 5070512.

215070500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (215070503) 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, 1820 + ... + 20819.

It is an arithmetic number, because the mean of its divisors is an integer number (10301200).

Almost surely, 2^215070500 is an apocalyptic number.

215070500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215070500 is an abundant number, since it is smaller than the sum of its proper divisors (279387100).

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

215070500 is a wasteful number, since it uses less digits than its factorization.

215070500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22677 (or 22665 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 20.

The square root of 215070500 is about 14665.2821316196. The cubic root of 215070500 is about 599.1381143666.

The spelling of 215070500 in words is "two hundred fifteen million, seventy thousand, five hundred".