20025456 has 160 divisors (see below), whose sum is σ = 62995968. Its totient is φ = 5406720.

The previous prime is 20025443. The next prime is 20025461. The reversal of 20025456 is 65452002.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 206400 + ... + 206496.

Almost surely, 2^20025456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20025456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31497984).

20025456 is an abundant number, since it is smaller than the sum of its proper divisors (42970512).

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

20025456 is a wasteful number, since it uses less digits than its factorization.

20025456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 20025456 is about 4474.9811172786. The cubic root of 20025456 is about 271.5568765253.

Adding to 20025456 its reverse (65452002), we get a palindrome (85477458).

The spelling of 20025456 in words is "twenty million, twenty-five thousand, four hundred fifty-six".