54688778 has 8 divisors (see below), whose sum is σ = 82064772. Its totient is φ = 27333856.

The previous prime is 54688769. The next prime is 54688787. The reversal of 54688778 is 87788645.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (54688769) and next prime (54688787).

It can be written as a sum of positive squares in 2 ways, for example, as 53919649 + 769129 = 7343^2 + 877^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6326 + ... + 12222.

Almost surely, 2^54688778 is an apocalyptic number.

54688778 is a deficient number, since it is larger than the sum of its proper divisors (27375994).

54688778 is a wasteful number, since it uses less digits than its factorization.

54688778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10536.

The product of its digits is 3010560, while the sum is 53.

The square root of 54688778 is about 7395.1861369407. The cubic root of 54688778 is about 379.5765782315.

The spelling of 54688778 in words is "fifty-four million, six hundred eighty-eight thousand, seven hundred seventy-eight".