55350320 has 40 divisors (see below), whose sum is σ = 129005136. Its totient is φ = 22085888.

The previous prime is 55350307. The next prime is 55350341. The reversal of 55350320 is 2305355.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-3 number, since 3×55350320³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54134 + ... + 55146.

Almost surely, 2^55350320 is an apocalyptic number.

It is an amenable number.

55350320 is an abundant number, since it is smaller than the sum of its proper divisors (73654816).

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

55350320 is a wasteful number, since it uses less digits than its factorization.

55350320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1709 (or 1703 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 23.

The square root of 55350320 is about 7439.7795666270. The cubic root of 55350320 is about 381.1009622602.

Adding to 55350320 its reverse (2305355), we get a palindrome (57655675).

The spelling of 55350320 in words is "fifty-five million, three hundred fifty thousand, three hundred twenty".