54779786 has 4 divisors (see below), whose sum is σ = 82169682. Its totient is φ = 27389892.

The previous prime is 54779779. The next prime is 54779839. The reversal of 54779786 is 68797745.

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

It can be written as a sum of positive squares in only one way, i.e., 51051025 + 3728761 = 7145^2 + 1931^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13694945 + ... + 13694948.

Almost surely, 2^54779786 is an apocalyptic number.

54779786 is a deficient number, since it is larger than the sum of its proper divisors (27389896).

54779786 is a wasteful number, since it uses less digits than its factorization.

54779786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27389895.

The product of its digits is 2963520, while the sum is 53.

The square root of 54779786 is about 7401.3367711515. The cubic root of 54779786 is about 379.7870136094.

The spelling of 54779786 in words is "fifty-four million, seven hundred seventy-nine thousand, seven hundred eighty-six".