55338951 has 4 divisors (see below), whose sum is σ = 73785272. Its totient is φ = 36892632.

The previous prime is 55338919. The next prime is 55338953. The reversal of 55338951 is 15983355.

It is a happy number.

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

It is not a de Polignac number, because 55338951 - 2⁵ = 55338919 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 (55338953) 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, 9223156 + ... + 9223161.

It is an arithmetic number, because the mean of its divisors is an integer number (18446318).

Almost surely, 2^55338951 is an apocalyptic number.

55338951 is a deficient number, since it is larger than the sum of its proper divisors (18446321).

55338951 is a wasteful number, since it uses less digits than its factorization.

55338951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18446320.

The product of its digits is 81000, while the sum is 39.

The square root of 55338951 is about 7439.0154590510. The cubic root of 55338951 is about 381.0748676593.

The spelling of 55338951 in words is "fifty-five million, three hundred thirty-eight thousand, nine hundred fifty-one".