21546002 has 8 divisors (see below), whose sum is σ = 32351616. Its totient is φ = 10762132.

The previous prime is 21546001. The next prime is 21546011. The reversal of 21546002 is 20064512.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (21546001) 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, 2678 + ... + 7089.

It is an arithmetic number, because the mean of its divisors is an integer number (4043952).

Almost surely, 2^21546002 is an apocalyptic number.

21546002 is a deficient number, since it is larger than the sum of its proper divisors (10805614).

21546002 is a wasteful number, since it uses less digits than its factorization.

21546002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10872.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 21546002 is about 4641.7671203971. The cubic root of 21546002 is about 278.2630655164.

The spelling of 21546002 in words is "twenty-one million, five hundred forty-six thousand, two".