48278645 has 4 divisors (see below), whose sum is σ = 57934380. Its totient is φ = 38622912.

The previous prime is 48278641. The next prime is 48278701. The reversal of 48278645 is 54687284.

48278645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 27857284 + 20421361 = 5278^2 + 4519^2 .

It is a cyclic number.

It is not a de Polignac number, because 48278645 - 2² = 48278641 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 48278596 and 48278605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48278641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4827860 + ... + 4827869.

It is an arithmetic number, because the mean of its divisors is an integer number (14483595).

Almost surely, 2^48278645 is an apocalyptic number.

It is an amenable number.

48278645 is a deficient number, since it is larger than the sum of its proper divisors (9655735).

48278645 is an equidigital number, since it uses as much as digits as its factorization.

48278645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9655734.

The product of its digits is 430080, while the sum is 44.

The square root of 48278645 is about 6948.2836010054. The cubic root of 48278645 is about 364.1260004360.

The spelling of 48278645 in words is "forty-eight million, two hundred seventy-eight thousand, six hundred forty-five".