20552543 has 8 divisors (see below), whose sum is σ = 22692096. Its totient is φ = 18458200.

The previous prime is 20552533. The next prime is 20552549. The reversal of 20552543 is 34525502.

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

It is a cyclic number.

It is not a de Polignac number, because 20552543 - 2⁴ = 20552527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20552549) 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, 10343 + ... + 12168.

It is an arithmetic number, because the mean of its divisors is an integer number (2836512).

Almost surely, 2^20552543 is an apocalyptic number.

20552543 is a deficient number, since it is larger than the sum of its proper divisors (2139553).

20552543 is a wasteful number, since it uses less digits than its factorization.

20552543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22605.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 20552543 is about 4533.4912595041. The cubic root of 20552543 is about 273.9188093042.

The spelling of 20552543 in words is "twenty million, five hundred fifty-two thousand, five hundred forty-three".