215019549950 has 24 divisors (see below), whose sum is σ = 409237212648. Its totient is φ = 84007637280.

The previous prime is 215019549937. The next prime is 215019549959. The reversal of 215019549950 is 59945910512.

215019549950 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215019549959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50002397 + ... + 50006696.

It is an arithmetic number, because the mean of its divisors is an integer number (17051550527).

Almost surely, 2^215019549950 is an apocalyptic number.

215019549950 is a deficient number, since it is larger than the sum of its proper divisors (194217662698).

215019549950 is a wasteful number, since it uses less digits than its factorization.

215019549950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100009148 (or 100009143 counting only the distinct ones).

The product of its (nonzero) digits is 729000, while the sum is 50.

The spelling of 215019549950 in words is "two hundred fifteen billion, nineteen million, five hundred forty-nine thousand, nine hundred fifty".