53478 has 12 divisors (see below), whose sum is σ = 115908. Its totient is φ = 17820.

The previous prime is 53453. The next prime is 53479. The reversal of 53478 is 87435.

53478 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53479) by changing a digit.

53478 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1468 + ... + 1503.

It is an arithmetic number, because the mean of its divisors is an integer number (9659).

2⁵³⁴⁷⁸ is an apocalyptic number.

53478 is an abundant number, since it is smaller than the sum of its proper divisors (62430).

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

53478 is a wasteful number, since it uses less digits than its factorization.

53478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2979 (or 2976 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 53478 is about 231.2531080872. The cubic root of 53478 is about 37.6754445654.

The spelling of 53478 in words is "fifty-three thousand, four hundred seventy-eight".