53389678 has 4 divisors (see below), whose sum is σ = 80084520. Its totient is φ = 26694838.

The previous prime is 53389663. The next prime is 53389717. The reversal of 53389678 is 87698335.

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

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13347418 + ... + 13347421.

It is an arithmetic number, because the mean of its divisors is an integer number (20021130).

Almost surely, 2^53389678 is an apocalyptic number.

53389678 is a deficient number, since it is larger than the sum of its proper divisors (26694842).

53389678 is a wasteful number, since it uses less digits than its factorization.

53389678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26694841.

The product of its digits is 1088640, while the sum is 49.

The square root of 53389678 is about 7306.8240706890. The cubic root of 53389678 is about 376.5469208031.

The spelling of 53389678 in words is "fifty-three million, three hundred eighty-nine thousand, six hundred seventy-eight".