53933278 has 16 divisors (see below), whose sum is σ = 92574720. Its totient is φ = 23084856.

The previous prime is 53933263. The next prime is 53933279. The reversal of 53933278 is 87233935.

It is a self number, because there is not a number n which added to its sum of digits gives 53933278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53933279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11803 + ... + 15721.

It is an arithmetic number, because the mean of its divisors is an integer number (5785920).

Almost surely, 2^53933278 is an apocalyptic number.

53933278 is a deficient number, since it is larger than the sum of its proper divisors (38641442).

53933278 is a wasteful number, since it uses less digits than its factorization.

53933278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4911.

The product of its digits is 136080, while the sum is 40.

The square root of 53933278 is about 7343.9279680563. The cubic root of 53933278 is about 377.8205758958.

The spelling of 53933278 in words is "fifty-three million, nine hundred thirty-three thousand, two hundred seventy-eight".