252223404516 has 18 divisors (see below), whose sum is σ = 637564717062. Its totient is φ = 84074468160.

The previous prime is 252223404509. The next prime is 252223404541. The reversal of 252223404516 is 615404322252.

252223404516 is a `hidden beast` number, since 25 + 2 + 223 + 404 + 5 + 1 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 214860060900 + 37363343616 = 463530^2 + 193296^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 7006205681 = 252223404516 / (2 + 5 + 2 + 2 + 2 + 3 + 4 + 0 + 4 + 5 + 1 + 6).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3503102805 + ... + 3503102876.

It is an arithmetic number, because the mean of its divisors is an integer number (35420262059).

Almost surely, 2^252223404516 is an apocalyptic number.

It is an amenable number.

252223404516 is an abundant number, since it is smaller than the sum of its proper divisors (385341312546).

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

252223404516 is a wasteful number, since it uses less digits than its factorization.

252223404516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7006205691 (or 7006205686 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 252223404516 its reverse (615404322252), we get a palindrome (867627726768).

The spelling of 252223404516 in words is "two hundred fifty-two billion, two hundred twenty-three million, four hundred four thousand, five hundred sixteen".