20027475 has 72 divisors (see below), whose sum is σ = 39809952. Its totient is φ = 9561600.

The previous prime is 20027461. The next prime is 20027507. The reversal of 20027475 is 57472002.

It is not a de Polignac number, because 20027475 - 2⁵ = 20027443 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 119842 + ... + 120008.

It is an arithmetic number, because the mean of its divisors is an integer number (552916).

Almost surely, 2^20027475 is an apocalyptic number.

20027475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20027475 is a deficient number, since it is larger than the sum of its proper divisors (19782477).

20027475 is a wasteful number, since it uses less digits than its factorization.

20027475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 20027475 is about 4475.2066991369. The cubic root of 20027475 is about 271.5660024916.

Adding to 20027475 its reverse (57472002), we get a palindrome (77499477).

It can be divided in two parts, 20027 and 475, that added together give a palindrome (20502).

The spelling of 20027475 in words is "twenty million, twenty-seven thousand, four hundred seventy-five".