218196050 has 18 divisors (see below), whose sum is σ = 406039023. Its totient is φ = 87236640.

The previous prime is 218196023. The next prime is 218196059. The reversal of 218196050 is 50691812.

It can be written as a sum of positive squares in 5 ways, for example, as 169182049 + 49014001 = 13007^2 + 7001^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=10445.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 218195998 and 218196016.

It is not an unprimeable number, because it can be changed into a prime (218196059) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 103406 + ... + 105494.

Almost surely, 2^218196050 is an apocalyptic number.

218196050 is a deficient number, since it is larger than the sum of its proper divisors (187842973).

218196050 is an frugal number, since it uses more digits than its factorization.

218196050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4190 (or 2096 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 218196050 is about 14771.4606589870. The cubic root of 218196050 is about 602.0265272358.

Multiplying 218196050 by its sum of digits (32), we get a square (6982273600 = 83560²).

The spelling of 218196050 in words is "two hundred eighteen million, one hundred ninety-six thousand, fifty".