20555043 has 8 divisors (see below), whose sum is σ = 27924048. Its totient is φ = 13444704.

The previous prime is 20555009. The next prime is 20555071. The reversal of 20555043 is 34055502.

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

It is not a de Polignac number, because 20555043 - 2¹⁶ = 20489507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20555083) 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, 64480 + ... + 64797.

It is an arithmetic number, because the mean of its divisors is an integer number (3490506).

Almost surely, 2^20555043 is an apocalyptic number.

20555043 is a deficient number, since it is larger than the sum of its proper divisors (7369005).

20555043 is a wasteful number, since it uses less digits than its factorization.

20555043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129333.

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

The square root of 20555043 is about 4533.7669768086. The cubic root of 20555043 is about 273.9299152982.

The spelling of 20555043 in words is "twenty million, five hundred fifty-five thousand, forty-three".