216414550 has 36 divisors (see below), whose sum is σ = 442463868. Its totient is φ = 78694000.

The previous prime is 216414511. The next prime is 216414553. The reversal of 216414550 is 55414612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216414553) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11836 + ... + 23935.

It is an arithmetic number, because the mean of its divisors is an integer number (12290663).

Almost surely, 2^216414550 is an apocalyptic number.

216414550 is an abundant number, since it is smaller than the sum of its proper divisors (226049318).

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

216414550 is a wasteful number, since it uses less digits than its factorization.

216414550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35805 (or 35789 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 216414550 is about 14711.0349737875. The cubic root of 216414550 is about 600.3835972955.

The spelling of 216414550 in words is "two hundred sixteen million, four hundred fourteen thousand, five hundred fifty".