20255526 has 24 divisors (see below), whose sum is σ = 44633160. Its totient is φ = 6637056.

The previous prime is 20255513. The next prime is 20255527. The reversal of 20255526 is 62555202.

It is a self number, because there is not a number n which added to its sum of digits gives 20255526.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20255527) 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 11 ways as a sum of consecutive naturals, for example, 8475 + ... + 10598.

It is an arithmetic number, because the mean of its divisors is an integer number (1859715).

Almost surely, 2^20255526 is an apocalyptic number.

20255526 is an abundant number, since it is smaller than the sum of its proper divisors (24377634).

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

20255526 is a wasteful number, since it uses less digits than its factorization.

20255526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19140 (or 19137 counting only the distinct ones).

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

The square root of 20255526 is about 4500.6139581173. The cubic root of 20255526 is about 272.5928802708.

The spelling of 20255526 in words is "twenty million, two hundred fifty-five thousand, five hundred twenty-six".