54623639955457 has 2 divisors, whose sum is σ = 54623639955458. Its totient is φ = 54623639955456.

The previous prime is 54623639955439. The next prime is 54623639955461. The reversal of 54623639955457 is 75455993632645.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54451648106496 + 171991848961 = 7379136^2 + 414719^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54623639955457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54623639955457.

It is not a weakly prime, because it can be changed into another prime (54623639955757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27311819977728 + 27311819977729.

It is an arithmetic number, because the mean of its divisors is an integer number (27311819977729).

Almost surely, 2^{54623639955457} is an apocalyptic number.

It is an amenable number.

54623639955457 is a deficient number, since it is larger than the sum of its proper divisors (1).

54623639955457 is an equidigital number, since it uses as much as digits as its factorization.

54623639955457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3674160000, while the sum is 73.

The spelling of 54623639955457 in words is "fifty-four trillion, six hundred twenty-three billion, six hundred thirty-nine million, nine hundred fifty-five thousand, four hundred fifty-seven".