54455147 has 4 divisors (see below), whose sum is σ = 54538440. Its totient is φ = 54371856.

The previous prime is 54455123. The next prime is 54455161. The reversal of 54455147 is 74155445.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54455147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54455347) 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, 40658 + ... + 41975.

It is an arithmetic number, because the mean of its divisors is an integer number (13634610).

Almost surely, 2^54455147 is an apocalyptic number.

54455147 is a deficient number, since it is larger than the sum of its proper divisors (83293).

54455147 is an equidigital number, since it uses as much as digits as its factorization.

54455147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83292.

The product of its digits is 56000, while the sum is 35.

The square root of 54455147 is about 7379.3730763528. The cubic root of 54455147 is about 379.0352884021.

The spelling of 54455147 in words is "fifty-four million, four hundred fifty-five thousand, one hundred forty-seven".