53145878 has 4 divisors (see below), whose sum is σ = 79718820. Its totient is φ = 26572938.

The previous prime is 53145877. The next prime is 53145887. The reversal of 53145878 is 87854135.

53145878 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 not an unprimeable number, because it can be changed into a prime (53145871) 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 as a sum of consecutive naturals, namely, 13286468 + ... + 13286471.

It is an arithmetic number, because the mean of its divisors is an integer number (19929705).

Almost surely, 2^53145878 is an apocalyptic number.

53145878 is a deficient number, since it is larger than the sum of its proper divisors (26572942).

53145878 is a wasteful number, since it uses less digits than its factorization.

53145878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26572941.

The product of its digits is 134400, while the sum is 41.

The square root of 53145878 is about 7290.1219468538. The cubic root of 53145878 is about 375.9728883047.

The spelling of 53145878 in words is "fifty-three million, one hundred forty-five thousand, eight hundred seventy-eight".