215555125323 has 8 divisors (see below), whose sum is σ = 287442742336. Its totient is φ = 143685462600.

The previous prime is 215555125297. The next prime is 215555125391. The reversal of 215555125323 is 323521555512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 215555125323 - 2²⁰ = 215554076747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215555127323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4460533 + ... + 4508598.

It is an arithmetic number, because the mean of its divisors is an integer number (35930342792).

Almost surely, 2^215555125323 is an apocalyptic number.

215555125323 is a deficient number, since it is larger than the sum of its proper divisors (71887617013).

215555125323 is an equidigital number, since it uses as much as digits as its factorization.

215555125323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8977145.

The product of its digits is 225000, while the sum is 39.

The spelling of 215555125323 in words is "two hundred fifteen billion, five hundred fifty-five million, one hundred twenty-five thousand, three hundred twenty-three".