55004279 has 4 divisors (see below), whose sum is σ = 60004680. Its totient is φ = 50003880.

The previous prime is 55004251. The next prime is 55004281. The reversal of 55004279 is 97240055.

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

It is a cyclic number.

It is not a de Polignac number, because 55004279 - 2⁸ = 55004023 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 (55004239) 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, 2500184 + ... + 2500205.

It is an arithmetic number, because the mean of its divisors is an integer number (15001170).

Almost surely, 2^55004279 is an apocalyptic number.

55004279 is a deficient number, since it is larger than the sum of its proper divisors (5000401).

55004279 is a wasteful number, since it uses less digits than its factorization.

55004279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5000400.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 55004279 is about 7416.4869716059. The cubic root of 55004279 is about 380.3051081438.

It can be divided in two parts, 5500 and 4279, that added together give a palindrome (9779).

The spelling of 55004279 in words is "fifty-five million, four thousand, two hundred seventy-nine".