20755433 has 16 divisors (see below), whose sum is σ = 22022400. Its totient is φ = 19543680.

The previous prime is 20755421. The next prime is 20755447. The reversal of 20755433 is 33455702.

It is a cyclic number.

It is not a de Polignac number, because 20755433 - 2⁴ = 20755417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20755396 and 20755405.

It is not an unprimeable number, because it can be changed into a prime (20755463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262688 + ... + 262766.

It is an arithmetic number, because the mean of its divisors is an integer number (1376400).

Almost surely, 2^20755433 is an apocalyptic number.

It is an amenable number.

20755433 is a deficient number, since it is larger than the sum of its proper divisors (1266967).

20755433 is an equidigital number, since it uses as much as digits as its factorization.

20755433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272.

The product of its (nonzero) digits is 12600, while the sum is 29.

The square root of 20755433 is about 4555.8130997661. The cubic root of 20755433 is about 274.8172140707.

The spelling of 20755433 in words is "twenty million, seven hundred fifty-five thousand, four hundred thirty-three".