20025466 has 16 divisors (see below), whose sum is σ = 31082688. Its totient is φ = 9669600.

The previous prime is 20025461. The next prime is 20025491. The reversal of 20025466 is 66452002.

It is a self number, because there is not a number n which added to its sum of digits gives 20025466.

It is not an unprimeable number, because it can be changed into a prime (20025461) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7261 + ... + 9631.

It is an arithmetic number, because the mean of its divisors is an integer number (1942668).

Almost surely, 2^20025466 is an apocalyptic number.

20025466 is a deficient number, since it is larger than the sum of its proper divisors (11057222).

20025466 is a wasteful number, since it uses less digits than its factorization.

20025466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2517.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 20025466 is about 4474.9822346016. The cubic root of 20025466 is about 271.5569217272.

Adding to 20025466 its reverse (66452002), we get a palindrome (86477468).

The spelling of 20025466 in words is "twenty million, twenty-five thousand, four hundred sixty-six".