21602950250 has 32 divisors (see below), whose sum is σ = 46217972736. Its totient is φ = 7406725200.

The previous prime is 21602950189. The next prime is 21602950273. The reversal of 21602950250 is 5205920612.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6170522 + ... + 6174021.

It is an arithmetic number, because the mean of its divisors is an integer number (1444311648).

Almost surely, 2^21602950250 is an apocalyptic number.

21602950250 is an abundant number, since it is smaller than the sum of its proper divisors (24615022486).

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

21602950250 is a wasteful number, since it uses less digits than its factorization.

21602950250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12344567 (or 12344557 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The spelling of 21602950250 in words is "twenty-one billion, six hundred two million, nine hundred fifty thousand, two hundred fifty".