55278335 has 8 divisors (see below), whose sum is σ = 75810336. Its totient is φ = 37905120.

The previous prime is 55278329. The next prime is 55278337. The reversal of 55278335 is 53387255.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55278335 - 2⁴ = 55278319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55278337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 789656 + ... + 789725.

It is an arithmetic number, because the mean of its divisors is an integer number (9476292).

Almost surely, 2^55278335 is an apocalyptic number.

55278335 is a deficient number, since it is larger than the sum of its proper divisors (20532001).

55278335 is a wasteful number, since it uses less digits than its factorization.

55278335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1579393.

The product of its digits is 126000, while the sum is 38.

The square root of 55278335 is about 7434.9401477080. The cubic root of 55278335 is about 380.9356789391.

It can be divided in two parts, 552 and 78335, that added together give a palindrome (78887).

The spelling of 55278335 in words is "fifty-five million, two hundred seventy-eight thousand, three hundred thirty-five".