215055315252 has 60 divisors (see below), whose sum is σ = 562420305216. Its totient is φ = 71656641360.

The previous prime is 215055315239. The next prime is 215055315263. The reversal of 215055315252 is 252513550512.

215055315252 is a `hidden beast` number, since 2 + 1 + 5 + 0 + 553 + 1 + 52 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 693427 + ... + 954437.

Almost surely, 2^215055315252 is an apocalyptic number.

It is an amenable number.

215055315252 is an abundant number, since it is smaller than the sum of its proper divisors (347364989964).

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

215055315252 is a wasteful number, since it uses less digits than its factorization.

215055315252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263570 (or 263559 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

Adding to 215055315252 its reverse (252513550512), we get a palindrome (467568865764).

The spelling of 215055315252 in words is "two hundred fifteen billion, fifty-five million, three hundred fifteen thousand, two hundred fifty-two".