47778254 has 16 divisors (see below), whose sum is σ = 76533120. Its totient is φ = 22320480.

The previous prime is 47778253. The next prime is 47778257. The reversal of 47778254 is 45287774.

47778254 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47778253) 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 7 ways as a sum of consecutive naturals, for example, 11489 + ... + 15084.

It is an arithmetic number, because the mean of its divisors is an integer number (4783320).

Almost surely, 2^47778254 is an apocalyptic number.

47778254 is a deficient number, since it is larger than the sum of its proper divisors (28754866).

47778254 is a wasteful number, since it uses less digits than its factorization.

47778254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26635.

The product of its digits is 439040, while the sum is 44.

The square root of 47778254 is about 6912.1815659023. The cubic root of 47778254 is about 362.8636167503.

It can be divided in two parts, 4777 and 8254, that added together give a palindrome (13031).

The spelling of 47778254 in words is "forty-seven million, seven hundred seventy-eight thousand, two hundred fifty-four".