215039052 has 72 divisors (see below), whose sum is σ = 600608736. Its totient is φ = 64525824.

The previous prime is 215039051. The next prime is 215039063. The reversal of 215039052 is 250930512.

215039052 is a `hidden beast` number, since 21 + 503 + 90 + 52 = 666.

215039052 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (215039051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6438 + ... + 21714.

It is an arithmetic number, because the mean of its divisors is an integer number (8341788).

Almost surely, 2^215039052 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215039052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300304368).

215039052 is an abundant number, since it is smaller than the sum of its proper divisors (385569684).

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

215039052 is a wasteful number, since it uses less digits than its factorization.

215039052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15327 (or 15322 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 215039052 is about 14664.2099002981. The cubic root of 215039052 is about 599.1089105879.

Adding to 215039052 its reverse (250930512), we get a palindrome (465969564).

The spelling of 215039052 in words is "two hundred fifteen million, thirty-nine thousand, fifty-two".