21275096 has 16 divisors (see below), whose sum is σ = 41266800. Its totient is φ = 10270624.

The previous prime is 21275087. The next prime is 21275099. The reversal of 21275096 is 69057212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21275099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45620 + ... + 46083.

It is an arithmetic number, because the mean of its divisors is an integer number (2579175).

Almost surely, 2^21275096 is an apocalyptic number.

It is an amenable number.

21275096 is a deficient number, since it is larger than the sum of its proper divisors (19991704).

21275096 is a wasteful number, since it uses less digits than its factorization.

21275096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91738 (or 91734 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 21275096 is about 4612.4934688301. The cubic root of 21275096 is about 277.0919077955.

The spelling of 21275096 in words is "twenty-one million, two hundred seventy-five thousand, ninety-six".