53401326 has 32 divisors (see below), whose sum is σ = 117680256. Its totient is φ = 16020000.

The previous prime is 53401321. The next prime is 53401333. The reversal of 53401326 is 62310435.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 53401296 and 53401305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53401321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2661 + ... + 10671.

It is an arithmetic number, because the mean of its divisors is an integer number (3677508).

Almost surely, 2^53401326 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53401326, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58840128).

53401326 is an abundant number, since it is smaller than the sum of its proper divisors (64278930).

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

53401326 is a wasteful number, since it uses less digits than its factorization.

53401326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8128.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 53401326 is about 7307.6210903412. The cubic root of 53401326 is about 376.5743024979.

It can be divided in two parts, 5340 and 1326, that added together give a palindrome (6666).

The spelling of 53401326 in words is "fifty-three million, four hundred one thousand, three hundred twenty-six".