20553027 has 16 divisors (see below), whose sum is σ = 30093312. Its totient is φ = 12373920.

The previous prime is 20553023. The next prime is 20553047. The reversal of 20553027 is 72035502.

It is not a de Polignac number, because 20553027 - 2² = 20553023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20552988 and 20553006.

It is not an unprimeable number, because it can be changed into a prime (20553023) 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, 3198 + ... + 7164.

It is an arithmetic number, because the mean of its divisors is an integer number (1880832).

Almost surely, 2^20553027 is an apocalyptic number.

20553027 is a deficient number, since it is larger than the sum of its proper divisors (9540285).

20553027 is a wasteful number, since it uses less digits than its factorization.

20553027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4138.

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 20553027 is about 4533.5446396832. The cubic root of 20553027 is about 273.9209594950.

Adding to 20553027 its reverse (72035502), we get a palindrome (92588529).

The spelling of 20553027 in words is "twenty million, five hundred fifty-three thousand, twenty-seven".