55454678 has 4 divisors (see below), whose sum is σ = 83182020. Its totient is φ = 27727338.

The previous prime is 55454657. The next prime is 55454681. The reversal of 55454678 is 87645455.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13863668 + ... + 13863671.

It is an arithmetic number, because the mean of its divisors is an integer number (20795505).

Almost surely, 2^55454678 is an apocalyptic number.

55454678 is a deficient number, since it is larger than the sum of its proper divisors (27727342).

55454678 is a wasteful number, since it uses less digits than its factorization.

55454678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27727341.

The product of its digits is 672000, while the sum is 44.

The square root of 55454678 is about 7446.7897781527. The cubic root of 55454678 is about 381.3403223069.

The spelling of 55454678 in words is "fifty-five million, four hundred fifty-four thousand, six hundred seventy-eight".