55312433 has 8 divisors (see below), whose sum is σ = 60419520. Its totient is φ = 50218480.

The previous prime is 55312429. The next prime is 55312451. The reversal of 55312433 is 33421355.

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 55312433 - 2² = 55312429 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55318433) 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, 6923 + ... + 12591.

It is an arithmetic number, because the mean of its divisors is an integer number (7552440).

Almost surely, 2^55312433 is an apocalyptic number.

It is an amenable number.

55312433 is a deficient number, since it is larger than the sum of its proper divisors (5107087).

55312433 is a wasteful number, since it uses less digits than its factorization.

55312433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6567.

The product of its digits is 5400, while the sum is 26.

The square root of 55312433 is about 7437.2328859597. The cubic root of 55312433 is about 381.0139885514.

Adding to 55312433 its reverse (33421355), we get a palindrome (88733788).

The spelling of 55312433 in words is "fifty-five million, three hundred twelve thousand, four hundred thirty-three".