55455745 has 8 divisors (see below), whose sum is σ = 68693760. Its totient is φ = 42933360.

The previous prime is 55455731. The next prime is 55455779. The reversal of 55455745 is 54755455.

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

It is not a de Polignac number, because 55455745 - 2⁵ = 55455713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55455698 and 55455707.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178735 + ... + 179044.

It is an arithmetic number, because the mean of its divisors is an integer number (8586720).

Almost surely, 2^55455745 is an apocalyptic number.

It is an amenable number.

55455745 is a deficient number, since it is larger than the sum of its proper divisors (13238015).

55455745 is a wasteful number, since it uses less digits than its factorization.

55455745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357815.

The product of its digits is 350000, while the sum is 40.

The square root of 55455745 is about 7446.8614194169. The cubic root of 55455745 is about 381.3427680730.

The spelling of 55455745 in words is "fifty-five million, four hundred fifty-five thousand, seven hundred forty-five".