53455878 has 48 divisors (see below), whose sum is σ = 132777216. Its totient is φ = 15225840.

The previous prime is 53455819. The next prime is 53455879. The reversal of 53455878 is 87855435.

53455878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53455879) 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 23 ways as a sum of consecutive naturals, for example, 71575 + ... + 72317.

It is an arithmetic number, because the mean of its divisors is an integer number (2766192).

Almost surely, 2^53455878 is an apocalyptic number.

53455878 is an abundant number, since it is smaller than the sum of its proper divisors (79321338).

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

53455878 is a wasteful number, since it uses less digits than its factorization.

53455878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329 (or 1326 counting only the distinct ones).

The product of its digits is 672000, while the sum is 45.

The square root of 53455878 is about 7311.3526792243. The cubic root of 53455878 is about 376.7024883919.

The spelling of 53455878 in words is "fifty-three million, four hundred fifty-five thousand, eight hundred seventy-eight".