55610320 has 40 divisors (see below), whose sum is σ = 134919936. Its totient is φ = 21276288.

The previous prime is 55610299. The next prime is 55610327. The reversal of 55610320 is 2301655.

It is a happy number.

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

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 55610291 and 55610300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55610327) 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 7 ways as a sum of consecutive naturals, for example, 13272 + ... + 16951.

Almost surely, 2^55610320 is an apocalyptic number.

It is an amenable number.

55610320 is an abundant number, since it is smaller than the sum of its proper divisors (79309616).

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

55610320 is a wasteful number, since it uses less digits than its factorization.

55610320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30259 (or 30253 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 55610320 is about 7457.2327307118. The cubic root of 55610320 is about 381.6967522881.

Adding to 55610320 its reverse (2301655), we get a palindrome (57911975).

The spelling of 55610320 in words is "fifty-five million, six hundred ten thousand, three hundred twenty".