55133906 has 8 divisors (see below), whose sum is σ = 82732800. Its totient is φ = 27556308.

The previous prime is 55133893. The next prime is 55133929. The reversal of 55133906 is 60933155.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5795 + ... + 11993.

It is an arithmetic number, because the mean of its divisors is an integer number (10341600).

Almost surely, 2^55133906 is an apocalyptic number.

55133906 is a deficient number, since it is larger than the sum of its proper divisors (27598894).

55133906 is a wasteful number, since it uses less digits than its factorization.

55133906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10648.

The product of its (nonzero) digits is 12150, while the sum is 32.

The square root of 55133906 is about 7425.2209394738. The cubic root of 55133906 is about 380.6036251290.

The spelling of 55133906 in words is "fifty-five million, one hundred thirty-three thousand, nine hundred six".