55172335 has 4 divisors (see below), whose sum is σ = 66206808. Its totient is φ = 44137864.

The previous prime is 55172323. The next prime is 55172357. The reversal of 55172335 is 53327155.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55172335 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55172297 and 55172306.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5517229 + ... + 5517238.

It is an arithmetic number, because the mean of its divisors is an integer number (16551702).

Almost surely, 2^55172335 is an apocalyptic number.

55172335 is a deficient number, since it is larger than the sum of its proper divisors (11034473).

55172335 is a wasteful number, since it uses less digits than its factorization.

55172335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11034472.

The product of its digits is 15750, while the sum is 31.

The square root of 55172335 is about 7427.8082231571. The cubic root of 55172335 is about 380.6920330367.

The spelling of 55172335 in words is "fifty-five million, one hundred seventy-two thousand, three hundred thirty-five".