55255078 has 8 divisors (see below), whose sum is σ = 87244920. Its totient is φ = 26173440.

The previous prime is 55255073. The next prime is 55255091. The reversal of 55255078 is 87055255.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55255073) 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, 727003 + ... + 727078.

It is an arithmetic number, because the mean of its divisors is an integer number (10905615).

Almost surely, 2^55255078 is an apocalyptic number.

55255078 is a deficient number, since it is larger than the sum of its proper divisors (31989842).

55255078 is a wasteful number, since it uses less digits than its factorization.

55255078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454102.

The product of its (nonzero) digits is 70000, while the sum is 37.

The square root of 55255078 is about 7433.3759490557. The cubic root of 55255078 is about 380.8822483390.

The spelling of 55255078 in words is "fifty-five million, two hundred fifty-five thousand, seventy-eight".