215488516 has 6 divisors (see below), whose sum is σ = 377104910. Its totient is φ = 107744256.

The previous prime is 215488489. The next prime is 215488517. The reversal of 215488516 is 615884512.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 142898116 + 72590400 = 11954^2 + 8520^2 .

It is not an unprimeable number, because it can be changed into a prime (215488517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26936061 + ... + 26936068.

Almost surely, 2^215488516 is an apocalyptic number.

It is an amenable number.

215488516 is a deficient number, since it is larger than the sum of its proper divisors (161616394).

215488516 is a wasteful number, since it uses less digits than its factorization.

215488516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53872133 (or 53872131 counting only the distinct ones).

The product of its digits is 76800, while the sum is 40.

The square root of 215488516 is about 14679.5271040998. The cubic root of 215488516 is about 599.5260293887.

The spelling of 215488516 in words is "two hundred fifteen million, four hundred eighty-eight thousand, five hundred sixteen".