47455 has 4 divisors (see below), whose sum is σ = 56952. Its totient is φ = 37960.

The previous prime is 47441. The next prime is 47459. The reversal of 47455 is 55474.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55474 = 2 ⋅27737.

It is a de Polignac number, because none of the positive numbers 2^k-47455 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47459) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 4741 + ... + 4750.

It is an arithmetic number, because the mean of its divisors is an integer number (14238).

2⁴⁷⁴⁵⁵ is an apocalyptic number.

47455 is a deficient number, since it is larger than the sum of its proper divisors (9497).

47455 is an equidigital number, since it uses as much as digits as its factorization.

47455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9496.

The product of its digits is 2800, while the sum is 25.

The square root of 47455 is about 217.8416856343. The cubic root of 47455 is about 36.2043420410.

It can be divided in two parts, 474 and 55, that added together give a square (529 = 23²).

The spelling of 47455 in words is "forty-seven thousand, four hundred fifty-five".