52215544215 has 32 divisors (see below), whose sum is σ = 93364251840. Its totient is φ = 27687305088.

The previous prime is 52215544211. The next prime is 52215544223. The reversal of 52215544215 is 51244551225.

52215544215 is a `hidden beast` number, since 5 + 221 + 5 + 5 + 4 + 421 + 5 = 666.

52215544215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52215544215 - 2² = 52215544211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52215544215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52215544211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1094512 + ... + 1141221.

It is an arithmetic number, because the mean of its divisors is an integer number (2917632870).

Almost surely, 2^52215544215 is an apocalyptic number.

52215544215 is a deficient number, since it is larger than the sum of its proper divisors (41148707625).

52215544215 is a wasteful number, since it uses less digits than its factorization.

52215544215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2235920 (or 2235914 counting only the distinct ones).

The product of its digits is 80000, while the sum is 36.

The spelling of 52215544215 in words is "fifty-two billion, two hundred fifteen million, five hundred forty-four thousand, two hundred fifteen".