55252378 has 4 divisors (see below), whose sum is σ = 82878570. Its totient is φ = 27626188.

The previous prime is 55252349. The next prime is 55252381. The reversal of 55252378 is 87325255.

55252378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 50310649 + 4941729 = 7093^2 + 2223^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13813093 + ... + 13813096.

Almost surely, 2^55252378 is an apocalyptic number.

55252378 is a deficient number, since it is larger than the sum of its proper divisors (27626192).

55252378 is a wasteful number, since it uses less digits than its factorization.

55252378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27626191.

The product of its digits is 84000, while the sum is 37.

The square root of 55252378 is about 7433.1943335285. The cubic root of 55252378 is about 380.8760443914.

The spelling of 55252378 in words is "fifty-five million, two hundred fifty-two thousand, three hundred seventy-eight".