55406333 has 4 divisors (see below), whose sum is σ = 57815328. Its totient is φ = 52997340.

The previous prime is 55406297. The next prime is 55406347. The reversal of 55406333 is 33360455.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55406333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55406296 and 55406305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55406233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1204463 + ... + 1204508.

It is an arithmetic number, because the mean of its divisors is an integer number (14453832).

Almost surely, 2^55406333 is an apocalyptic number.

It is an amenable number.

55406333 is a deficient number, since it is larger than the sum of its proper divisors (2408995).

55406333 is a wasteful number, since it uses less digits than its factorization.

55406333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2408994.

The product of its (nonzero) digits is 16200, while the sum is 29.

The square root of 55406333 is about 7443.5430407837. The cubic root of 55406333 is about 381.2294734806.

Adding to 55406333 its reverse (33360455), we get a palindrome (88766788).

The spelling of 55406333 in words is "fifty-five million, four hundred six thousand, three hundred thirty-three".