20755671 has 8 divisors (see below), whose sum is σ = 27928560. Its totient is φ = 13709952.

The previous prime is 20755661. The next prime is 20755681. The reversal of 20755671 is 17655702.

It is an interprime number because it is at equal distance from previous prime (20755661) and next prime (20755681).

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

It is not a de Polignac number, because 20755671 - 2⁹ = 20755159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20755661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31410 + ... + 32063.

It is an arithmetic number, because the mean of its divisors is an integer number (3491070).

Almost surely, 2^20755671 is an apocalyptic number.

20755671 is a deficient number, since it is larger than the sum of its proper divisors (7172889).

20755671 is a wasteful number, since it uses less digits than its factorization.

20755671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63585.

The product of its (nonzero) digits is 14700, while the sum is 33.

The square root of 20755671 is about 4555.8392201657. The cubic root of 20755671 is about 274.8182644984.

The spelling of 20755671 in words is "twenty million, seven hundred fifty-five thousand, six hundred seventy-one".