55255678 has 8 divisors (see below), whose sum is σ = 87759072. Its totient is φ = 26002656.

The previous prime is 55255663. The next prime is 55255687. The reversal of 55255678 is 87655255.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 812550 + ... + 812617.

It is an arithmetic number, because the mean of its divisors is an integer number (10969884).

Almost surely, 2^55255678 is an apocalyptic number.

55255678 is a deficient number, since it is larger than the sum of its proper divisors (32503394).

55255678 is a wasteful number, since it uses less digits than its factorization.

55255678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625186.

The product of its digits is 420000, while the sum is 43.

The square root of 55255678 is about 7433.4163074592. The cubic root of 55255678 is about 380.8836269666.

The spelling of 55255678 in words is "fifty-five million, two hundred fifty-five thousand, six hundred seventy-eight".