55368878 has 4 divisors (see below), whose sum is σ = 83053320. Its totient is φ = 27684438.

The previous prime is 55368871. The next prime is 55368899. The reversal of 55368878 is 87886355.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87886355 = 5 ⋅17577271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55368871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13842218 + ... + 13842221.

It is an arithmetic number, because the mean of its divisors is an integer number (20763330).

Almost surely, 2^55368878 is an apocalyptic number.

55368878 is a deficient number, since it is larger than the sum of its proper divisors (27684442).

55368878 is a wasteful number, since it uses less digits than its factorization.

55368878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27684441.

The product of its digits is 1612800, while the sum is 50.

The square root of 55368878 is about 7441.0266764742. The cubic root of 55368878 is about 381.1435496766.

The spelling of 55368878 in words is "fifty-five million, three hundred sixty-eight thousand, eight hundred seventy-eight".