55693326 has 64 divisors (see below), whose sum is σ = 128616768. Its totient is φ = 15925248.

The previous prime is 55693321. The next prime is 55693333. The reversal of 55693326 is 62339655.

It is a super-3 number, since 3×55693326³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55693321) 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 31 ways as a sum of consecutive naturals, for example, 128406 + ... + 128838.

It is an arithmetic number, because the mean of its divisors is an integer number (2009637).

Almost surely, 2^55693326 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55693326, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64308384).

55693326 is an abundant number, since it is smaller than the sum of its proper divisors (72923442).

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

55693326 is a wasteful number, since it uses less digits than its factorization.

55693326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565.

The product of its digits is 145800, while the sum is 39.

The square root of 55693326 is about 7462.7961247779. The cubic root of 55693326 is about 381.8865693933.

The spelling of 55693326 in words is "fifty-five million, six hundred ninety-three thousand, three hundred twenty-six".