21250096 has 20 divisors (see below), whose sum is σ = 47054032. Its totient is φ = 9107136.

The previous prime is 21250067. The next prime is 21250111. The reversal of 21250096 is 69005212.

It is a self number, because there is not a number n which added to its sum of digits gives 21250096.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94755 + ... + 94978.

Almost surely, 2^21250096 is an apocalyptic number.

It is an amenable number.

21250096 is an abundant number, since it is smaller than the sum of its proper divisors (25803936).

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

21250096 is a wasteful number, since it uses less digits than its factorization.

21250096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189748 (or 189742 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 21250096 is about 4609.7826412967. The cubic root of 21250096 is about 276.9833299408.

The spelling of 21250096 in words is "twenty-one million, two hundred fifty thousand, ninety-six".