20755275 has 48 divisors (see below), whose sum is σ = 36188160. Its totient is φ = 10483200.

The previous prime is 20755211. The next prime is 20755297. The reversal of 20755275 is 57255702.

It is not a de Polignac number, because 20755275 - 2⁶ = 20755211 is a prime.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 183619 + ... + 183731.

It is an arithmetic number, because the mean of its divisors is an integer number (753920).

Almost surely, 2^20755275 is an apocalyptic number.

20755275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20755275 is a deficient number, since it is larger than the sum of its proper divisors (15432885).

20755275 is a wasteful number, since it uses less digits than its factorization.

20755275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 24500, while the sum is 33.

The square root of 20755275 is about 4555.7957592500. The cubic root of 20755275 is about 274.8165167235.

The spelling of 20755275 in words is "twenty million, seven hundred fifty-five thousand, two hundred seventy-five".