54780051358 has 4 divisors (see below), whose sum is σ = 82170077040. Its totient is φ = 27390025678.

The previous prime is 54780051353. The next prime is 54780051383. The reversal of 54780051358 is 85315008745.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54780051353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13695012838 + ... + 13695012841.

It is an arithmetic number, because the mean of its divisors is an integer number (20542519260).

Almost surely, 2^54780051358 is an apocalyptic number.

54780051358 is a deficient number, since it is larger than the sum of its proper divisors (27390025682).

54780051358 is a wasteful number, since it uses less digits than its factorization.

54780051358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27390025681.

The product of its (nonzero) digits is 672000, while the sum is 46.

The spelling of 54780051358 in words is "fifty-four billion, seven hundred eighty million, fifty-one thousand, three hundred fifty-eight".