20025558 has 48 divisors (see below), whose sum is σ = 52509600. Its totient is φ = 5384448.

The previous prime is 20025527. The next prime is 20025559. The reversal of 20025558 is 85552002.

It is a super-3 number, since 3×20025558³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20025559) 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 23 ways as a sum of consecutive naturals, for example, 2533 + ... + 6816.

It is an arithmetic number, because the mean of its divisors is an integer number (1093950).

Almost surely, 2^20025558 is an apocalyptic number.

20025558 is an abundant number, since it is smaller than the sum of its proper divisors (32484042).

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

20025558 is a wasteful number, since it uses less digits than its factorization.

20025558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9381 (or 9378 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 20025558 is about 4474.9925139602. The cubic root of 20025558 is about 271.5573375844.

The spelling of 20025558 in words is "twenty million, twenty-five thousand, five hundred fifty-eight".