55455758 has 4 divisors (see below), whose sum is σ = 83183640. Its totient is φ = 27727878.

The previous prime is 55455731. The next prime is 55455779. The reversal of 55455758 is 85755455.

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13863938 + ... + 13863941.

It is an arithmetic number, because the mean of its divisors is an integer number (20795910).

Almost surely, 2^55455758 is an apocalyptic number.

55455758 is a deficient number, since it is larger than the sum of its proper divisors (27727882).

55455758 is a wasteful number, since it uses less digits than its factorization.

55455758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27727881.

The product of its digits is 700000, while the sum is 44.

The square root of 55455758 is about 7446.8622922678. The cubic root of 55455758 is about 381.3427978712.

The spelling of 55455758 in words is "fifty-five million, four hundred fifty-five thousand, seven hundred fifty-eight".