215550050 has 12 divisors (see below), whose sum is σ = 400923186. Its totient is φ = 86220000.

The previous prime is 215550017. The next prime is 215550061. The reversal of 215550050 is 50055512.

It can be written as a sum of positive squares in 3 ways, for example, as 210163009 + 5387041 = 14497^2 + 2321^2 .

It is a junction number, because it is equal to n+sod(n) for n = 215549998 and 215550025.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2155451 + ... + 2155550.

Almost surely, 2^215550050 is an apocalyptic number.

215550050 is a deficient number, since it is larger than the sum of its proper divisors (185373136).

215550050 is a wasteful number, since it uses less digits than its factorization.

215550050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4311013 (or 4311008 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 23.

The square root of 215550050 is about 14681.6228666997. The cubic root of 215550050 is about 599.5830900068.

The spelling of 215550050 in words is "two hundred fifteen million, five hundred fifty thousand, fifty".