216455050 has 72 divisors (see below), whose sum is σ = 495982764. Its totient is φ = 69834240.

The previous prime is 216455009. The next prime is 216455053. The reversal of 216455050 is 50554612.

It can be written as a sum of positive squares in 6 ways, for example, as 104878081 + 111576969 = 10241^2 + 10563^2 .

It is not an unprimeable number, because it can be changed into a prime (216455053) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 39052 + ... + 44248.

Almost surely, 2^216455050 is an apocalyptic number.

216455050 is an abundant number, since it is smaller than the sum of its proper divisors (279527714).

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

216455050 is a wasteful number, since it uses less digits than its factorization.

216455050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5240 (or 5228 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 216455050 is about 14712.4114270911. The cubic root of 216455050 is about 600.4210470558.

The spelling of 216455050 in words is "two hundred sixteen million, four hundred fifty-five thousand, fifty".