21348055 has 8 divisors (see below), whose sum is σ = 25643232. Its totient is φ = 17061408.

The previous prime is 21348049. The next prime is 21348083. The reversal of 21348055 is 55084312.

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

It is a cyclic number.

It is not a de Polignac number, because 21348055 - 2¹¹ = 21346007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6742 + ... + 9388.

It is an arithmetic number, because the mean of its divisors is an integer number (3205404).

Almost surely, 2^21348055 is an apocalyptic number.

21348055 is a deficient number, since it is larger than the sum of its proper divisors (4295177).

21348055 is a wasteful number, since it uses less digits than its factorization.

21348055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4265.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 21348055 is about 4620.3955458380. The cubic root of 21348055 is about 277.4082915308.

The spelling of 21348055 in words is "twenty-one million, three hundred forty-eight thousand, fifty-five".