55616133 has 8 divisors (see below), whose sum is σ = 75554208. Its totient is φ = 36377744.

The previous prime is 55616123. The next prime is 55616137. The reversal of 55616133 is 33161655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55616133 - 2⁵ = 55616101 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55616133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55616137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174735 + ... + 175052.

It is an arithmetic number, because the mean of its divisors is an integer number (9444276).

Almost surely, 2^55616133 is an apocalyptic number.

55616133 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

55616133 is a deficient number, since it is larger than the sum of its proper divisors (19938075).

55616133 is a wasteful number, since it uses less digits than its factorization.

55616133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349843.

The product of its digits is 8100, while the sum is 30.

The square root of 55616133 is about 7457.6224763660. The cubic root of 55616133 is about 381.7100515337.

Adding to 55616133 its reverse (33161655), we get a palindrome (88777788).

The spelling of 55616133 in words is "fifty-five million, six hundred sixteen thousand, one hundred thirty-three".