215525000120 has 64 divisors (see below), whose sum is σ = 499534711200. Its totient is φ = 83637329920.

The previous prime is 215525000113. The next prime is 215525000143. The reversal of 215525000120 is 21000525512.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73529 + ... + 660648.

Almost surely, 2^215525000120 is an apocalyptic number.

215525000120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215525000120 is an abundant number, since it is smaller than the sum of its proper divisors (284009711080).

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

215525000120 is a wasteful number, since it uses less digits than its factorization.

215525000120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734408 (or 734404 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

Adding to 215525000120 its reverse (21000525512), we get a palindrome (236525525632).

The spelling of 215525000120 in words is "two hundred fifteen billion, five hundred twenty-five million, one hundred twenty", and thus it is an aban number.