52678720 has 28 divisors (see below), whose sum is σ = 125441964. Its totient is φ = 21071360.

The previous prime is 52678709. The next prime is 52678723. The reversal of 52678720 is 2787625.

It can be written as a sum of positive squares in 2 ways, for example, as 26790976 + 25887744 = 5176^2 + 5088^2 .

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 52678720.

It is not an unprimeable number, because it can be changed into a prime (52678723) 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, 81991 + ... + 82630.

Almost surely, 2^52678720 is an apocalyptic number.

It is an amenable number.

52678720 is an abundant number, since it is smaller than the sum of its proper divisors (72763244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52678720 is a wasteful number, since it uses less digits than its factorization.

52678720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164638 (or 164628 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 52678720 is about 7258.0107467542. The cubic root of 52678720 is about 374.8680306000.

The spelling of 52678720 in words is "fifty-two million, six hundred seventy-eight thousand, seven hundred twenty".