216553050 has 288 divisors, whose sum is σ = 719596800. Its totient is φ = 46569600.

The previous prime is 216553039. The next prime is 216553061. The reversal of 216553050 is 50355612.

216553050 is a `hidden beast` number, since 2 + 1 + 655 + 3 + 0 + 5 + 0 = 666.

216553050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (216553039) and next prime (216553061).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 3550020 + ... + 3550080.

It is an arithmetic number, because the mean of its divisors is an integer number (2498600).

Almost surely, 2^216553050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216553050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359798400).

216553050 is an abundant number, since it is smaller than the sum of its proper divisors (503043750).

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

216553050 is a wasteful number, since it uses less digits than its factorization.

216553050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 216553050 is about 14715.7415715281. The cubic root of 216553050 is about 600.5116469051.

The spelling of 216553050 in words is "two hundred sixteen million, five hundred fifty-three thousand, fifty".