55504133 has 8 divisors (see below), whose sum is σ = 60020352. Its totient is φ = 51126976.

The previous prime is 55504121. The next prime is 55504147. The reversal of 55504133 is 33140555.

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

It is not a de Polignac number, because 55504133 - 2⁴ = 55504117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55504103) 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, 33935 + ... + 35532.

It is an arithmetic number, because the mean of its divisors is an integer number (7502544).

Almost surely, 2^55504133 is an apocalyptic number.

It is an amenable number.

55504133 is a deficient number, since it is larger than the sum of its proper divisors (4516219).

55504133 is a wasteful number, since it uses less digits than its factorization.

55504133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69531.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 55504133 is about 7450.1095965093. The cubic root of 55504133 is about 381.4536495790.

Adding to 55504133 its reverse (33140555), we get a palindrome (88644688).

The spelling of 55504133 in words is "fifty-five million, five hundred four thousand, one hundred thirty-three".