54777747 has 8 divisors (see below), whose sum is σ = 73092240. Its totient is φ = 36490880.

The previous prime is 54777739. The next prime is 54777761. The reversal of 54777747 is 74777745.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 54777747 - 2³ = 54777739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54777696 and 54777705.

It is not an unprimeable number, because it can be changed into a prime (54777727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1722 + ... + 10607.

It is an arithmetic number, because the mean of its divisors is an integer number (9136530).

Almost surely, 2^54777747 is an apocalyptic number.

54777747 is a deficient number, since it is larger than the sum of its proper divisors (18314493).

54777747 is a wasteful number, since it uses less digits than its factorization.

54777747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13813.

The product of its digits is 1344560, while the sum is 48.

The square root of 54777747 is about 7401.1990244825. The cubic root of 54777747 is about 379.7823014374.

The spelling of 54777747 in words is "fifty-four million, seven hundred seventy-seven thousand, seven hundred forty-seven".