20025966 has 24 divisors (see below), whose sum is σ = 42550200. Its totient is φ = 6282112.

The previous prime is 20025959. The next prime is 20025989. The reversal of 20025966 is 66952002.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4041 + ... + 7508.

It is an arithmetic number, because the mean of its divisors is an integer number (1772925).

Almost surely, 2^20025966 is an apocalyptic number.

20025966 is an abundant number, since it is smaller than the sum of its proper divisors (22524234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20025966 is a wasteful number, since it uses less digits than its factorization.

20025966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11588 (or 11571 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 20025966 is about 4475.0381003965. The cubic root of 20025966 is about 271.5591818050.

Adding to 20025966 its reverse (66952002), we get a palindrome (86977968).

The spelling of 20025966 in words is "twenty million, twenty-five thousand, nine hundred sixty-six".