20552433 has 16 divisors (see below), whose sum is σ = 31468800. Its totient is φ = 11800080.

The previous prime is 20552423. The next prime is 20552447. The reversal of 20552433 is 33425502.

It is not a de Polignac number, because 20552433 - 2⁴ = 20552417 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20552423) 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, 15763 + ... + 17016.

It is an arithmetic number, because the mean of its divisors is an integer number (1966800).

Almost surely, 2^20552433 is an apocalyptic number.

It is an amenable number.

20552433 is a deficient number, since it is larger than the sum of its proper divisors (10916367).

20552433 is a wasteful number, since it uses less digits than its factorization.

20552433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32812.

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 20552433 is about 4533.4791275576. The cubic root of 20552433 is about 273.9183206198.

Adding to 20552433 its reverse (33425502), we get a palindrome (53977935).

The spelling of 20552433 in words is "twenty million, five hundred fifty-two thousand, four hundred thirty-three".