55353312 has 72 divisors (see below), whose sum is σ = 179904816. Its totient is φ = 15814656.

The previous prime is 55353307. The next prime is 55353349. The reversal of 55353312 is 21335355.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11713 + ... + 15744.

It is an arithmetic number, because the mean of its divisors is an integer number (2498678).

Almost surely, 2^55353312 is an apocalyptic number.

It is an amenable number.

55353312 is an abundant number, since it is smaller than the sum of its proper divisors (124551504).

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

55353312 is a wasteful number, since it uses less digits than its factorization.

55353312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27480 (or 27469 counting only the distinct ones).

The product of its digits is 6750, while the sum is 27.

The square root of 55353312 is about 7439.9806451361. The cubic root of 55353312 is about 381.1078290289.

Adding to 55353312 its reverse (21335355), we get a palindrome (76688667).

The spelling of 55353312 in words is "fifty-five million, three hundred fifty-three thousand, three hundred twelve".