52978 has 4 divisors (see below), whose sum is σ = 79470. Its totient is φ = 26488.

The previous prime is 52973. The next prime is 52981. The reversal of 52978 is 87925.

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

It can be written as a sum of positive squares in only one way, i.e., 49729 + 3249 = 223^2 + 57^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (52973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13243 + ... + 13246.

2⁵²⁹⁷⁸ is an apocalyptic number.

52978 is a deficient number, since it is larger than the sum of its proper divisors (26492).

52978 is a wasteful number, since it uses less digits than its factorization.

52978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26491.

The product of its digits is 5040, while the sum is 31.

The square root of 52978 is about 230.1695027583. The cubic root of 52978 is about 37.5576594464.

The spelling of 52978 in words is "fifty-two thousand, nine hundred seventy-eight".