215252503115 has 16 divisors (see below), whose sum is σ = 278613362496. Its totient is φ = 158703753600.

The previous prime is 215252503097. The next prime is 215252503117. The reversal of 215252503115 is 511305252512.

It is not a de Polignac number, because 215252503115 - 2⁸ = 215252502859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215252503117) 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, 2583056 + ... + 2665085.

It is an arithmetic number, because the mean of its divisors is an integer number (17413335156).

Almost surely, 2^215252503115 is an apocalyptic number.

215252503115 is a deficient number, since it is larger than the sum of its proper divisors (63360859381).

215252503115 is a wasteful number, since it uses less digits than its factorization.

215252503115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5248790.

The product of its (nonzero) digits is 15000, while the sum is 32.

Adding to 215252503115 its reverse (511305252512), we get a palindrome (726557755627).

The spelling of 215252503115 in words is "two hundred fifteen billion, two hundred fifty-two million, five hundred three thousand, one hundred fifteen".