20126255 has 8 divisors (see below), whose sum is σ = 24442992. Its totient is φ = 15906688.

The previous prime is 20126251. The next prime is 20126287. The reversal of 20126255 is 55262102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20126255 - 2² = 20126251 is a prime.

It is a super-2 number, since 2×20126255² = 810132280650050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20126255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20126251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23834 + ... + 24663.

It is an arithmetic number, because the mean of its divisors is an integer number (3055374).

Almost surely, 2^20126255 is an apocalyptic number.

20126255 is a deficient number, since it is larger than the sum of its proper divisors (4316737).

20126255 is an equidigital number, since it uses as much as digits as its factorization.

20126255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48585.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 20126255 is about 4486.2294858823. The cubic root of 20126255 is about 272.0117452757.

Adding to 20126255 its reverse (55262102), we get a palindrome (75388357).

The spelling of 20126255 in words is "twenty million, one hundred twenty-six thousand, two hundred fifty-five".