52681478 has 4 divisors (see below), whose sum is σ = 79022220. Its totient is φ = 26340738.

The previous prime is 52681459. The next prime is 52681481. The reversal of 52681478 is 87418625.

52681478 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 is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 13170368 + ... + 13170371.

It is an arithmetic number, because the mean of its divisors is an integer number (19755555).

Almost surely, 2^52681478 is an apocalyptic number.

52681478 is a deficient number, since it is larger than the sum of its proper divisors (26340742).

52681478 is a wasteful number, since it uses less digits than its factorization.

52681478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26340741.

The product of its digits is 107520, while the sum is 41.

The square root of 52681478 is about 7258.2007412306. The cubic root of 52681478 is about 374.8745725711.

The spelling of 52681478 in words is "fifty-two million, six hundred eighty-one thousand, four hundred seventy-eight".