20483555 has 16 divisors (see below), whose sum is σ = 26231040. Its totient is φ = 15301632.

The previous prime is 20483537. The next prime is 20483557. The reversal of 20483555 is 55538402.

It is not a de Polignac number, because 20483555 - 2⁸ = 20483299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20483557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10766 + ... + 12524.

It is an arithmetic number, because the mean of its divisors is an integer number (1639440).

Almost surely, 2^20483555 is an apocalyptic number.

20483555 is a deficient number, since it is larger than the sum of its proper divisors (5747485).

20483555 is a wasteful number, since it uses less digits than its factorization.

20483555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 20483555 is about 4525.8761582704. The cubic root of 20483555 is about 273.6119811891.

The spelling of 20483555 in words is "twenty million, four hundred eighty-three thousand, five hundred fifty-five".