54821277291 has 32 divisors (see below), whose sum is σ = 82214304768. Its totient is φ = 32201072640.

The previous prime is 54821277271. The next prime is 54821277341. The reversal of 54821277291 is 19277212845.

It is not a de Polignac number, because 54821277291 - 2⁶ = 54821277227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54821277291.

It is not an unprimeable number, because it can be changed into a prime (54821277241) 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 in 31 ways as a sum of consecutive naturals, for example, 226446 + ... + 401148.

It is an arithmetic number, because the mean of its divisors is an integer number (2569197024).

Almost surely, 2^54821277291 is an apocalyptic number.

54821277291 is a deficient number, since it is larger than the sum of its proper divisors (27393027477).

54821277291 is a wasteful number, since it uses less digits than its factorization.

54821277291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175011.

The product of its digits is 564480, while the sum is 48.

The spelling of 54821277291 in words is "fifty-four billion, eight hundred twenty-one million, two hundred seventy-seven thousand, two hundred ninety-one".