20255826 has 16 divisors (see below), whose sum is σ = 40771584. Its totient is φ = 6708624.

The previous prime is 20255813. The next prime is 20255839. The reversal of 20255826 is 62855202.

It is an interprime number because it is at equal distance from previous prime (20255813) and next prime (20255839).

It is a junction number, because it is equal to n+sod(n) for n = 20255793 and 20255802.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9810 + ... + 11693.

It is an arithmetic number, because the mean of its divisors is an integer number (2548224).

Almost surely, 2^20255826 is an apocalyptic number.

20255826 is an abundant number, since it is smaller than the sum of its proper divisors (20515758).

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

20255826 is a wasteful number, since it uses less digits than its factorization.

20255826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21665.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 20255826 is about 4500.6472867800. The cubic root of 20255826 is about 272.5942260346.

The spelling of 20255826 in words is "twenty million, two hundred fifty-five thousand, eight hundred twenty-six".