54787782242 has 6 divisors (see below), whose sum is σ = 82182169899. Its totient is φ = 27393725610.

The previous prime is 54787782241. The next prime is 54787782277. The reversal of 54787782242 is 24228778745.

It can be written as a sum of positive squares in only one way, i.e., 27393891121 + 27393891121 = 165511^2 + 165511^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=165511.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54787782241) 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 2 ways as a sum of consecutive naturals, for example, 248267 + ... + 413777.

Almost surely, 2^54787782242 is an apocalyptic number.

54787782242 is a deficient number, since it is larger than the sum of its proper divisors (27394387657).

54787782242 is an frugal number, since it uses more digits than its factorization.

54787782242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331024 (or 165513 counting only the distinct ones).

The product of its digits is 14049280, while the sum is 56.

The spelling of 54787782242 in words is "fifty-four billion, seven hundred eighty-seven million, seven hundred eighty-two thousand, two hundred forty-two".