20055345 has 8 divisors (see below), whose sum is σ = 32088576. Its totient is φ = 10696176.

The previous prime is 20055313. The next prime is 20055377. The reversal of 20055345 is 54355002.

It is an interprime number because it is at equal distance from previous prime (20055313) and next prime (20055377).

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

It is not a de Polignac number, because 20055345 - 2⁵ = 20055313 is a prime.

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, 668497 + ... + 668526.

It is an arithmetic number, because the mean of its divisors is an integer number (4011072).

Almost surely, 2^20055345 is an apocalyptic number.

It is an amenable number.

20055345 is a deficient number, since it is larger than the sum of its proper divisors (12033231).

20055345 is a wasteful number, since it uses less digits than its factorization.

20055345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337031.

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 20055345 is about 4478.3194392540. The cubic root of 20055345 is about 271.6919134620.

The spelling of 20055345 in words is "twenty million, fifty-five thousand, three hundred forty-five".