54765480247 has 4 divisors (see below), whose sum is σ = 55165228416. Its totient is φ = 54365732080.

The previous prime is 54765480241. The next prime is 54765480269. The reversal of 54765480247 is 74208456745.

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

It is a cyclic number.

It is not a de Polignac number, because 54765480247 - 2¹⁵ = 54765447479 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54765480194 and 54765480203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54765480241) 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 3 ways as a sum of consecutive naturals, for example, 199873879 + ... + 199874152.

It is an arithmetic number, because the mean of its divisors is an integer number (13791307104).

Almost surely, 2^54765480247 is an apocalyptic number.

54765480247 is a deficient number, since it is larger than the sum of its proper divisors (399748169).

54765480247 is a wasteful number, since it uses less digits than its factorization.

54765480247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399748168.

The product of its (nonzero) digits is 7526400, while the sum is 52.

The spelling of 54765480247 in words is "fifty-four billion, seven hundred sixty-five million, four hundred eighty thousand, two hundred forty-seven".