20653126 has 16 divisors (see below), whose sum is σ = 34814304. Its totient is φ = 9117504.

The previous prime is 20653117. The next prime is 20653151. The reversal of 20653126 is 62135602.

It is a super-2 number, since 2×20653126² = 853103227143752, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20653126.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 16671 + ... + 17866.

It is an arithmetic number, because the mean of its divisors is an integer number (2175894).

Almost surely, 2^20653126 is an apocalyptic number.

20653126 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20653126 is a deficient number, since it is larger than the sum of its proper divisors (14161178).

20653126 is a wasteful number, since it uses less digits than its factorization.

20653126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34575.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 20653126 is about 4544.5710468646. The cubic root of 20653126 is about 274.3649301258.

Adding to 20653126 its reverse (62135602), we get a palindrome (82788728).

The spelling of 20653126 in words is "twenty million, six hundred fifty-three thousand, one hundred twenty-six".