20265552 has 100 divisors (see below), whose sum is σ = 61816480. Its totient is φ = 6391872.

The previous prime is 20265551. The next prime is 20265589. The reversal of 20265552 is 25556202.

20265552 is a `hidden beast` number, since 2 + 0 + 2 + 655 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20265551) 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 19 ways as a sum of consecutive naturals, for example, 24213 + ... + 25035.

Almost surely, 2^20265552 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 20265552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30908240).

20265552 is an abundant number, since it is smaller than the sum of its proper divisors (41550928).

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

20265552 is a wasteful number, since it uses less digits than its factorization.

20265552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862 (or 847 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 20265552 is about 4501.7276683513. The cubic root of 20265552 is about 272.6378485002.

The spelling of 20265552 in words is "twenty million, two hundred sixty-five thousand, five hundred fifty-two".