54645207457 has 2 divisors, whose sum is σ = 54645207458. Its totient is φ = 54645207456.

The previous prime is 54645207401. The next prime is 54645207553. The reversal of 54645207457 is 75470254645.

54645207457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37834529121 + 16810678336 = 194511^2 + 129656^2 .

It is a cyclic number.

It is not a de Polignac number, because 54645207457 - 2¹¹ = 54645205409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54645207457.

It is not a weakly prime, because it can be changed into another prime (54645207257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27322603728 + 27322603729.

It is an arithmetic number, because the mean of its divisors is an integer number (27322603729).

Almost surely, 2^54645207457 is an apocalyptic number.

It is an amenable number.

54645207457 is a deficient number, since it is larger than the sum of its proper divisors (1).

54645207457 is an equidigital number, since it uses as much as digits as its factorization.

54645207457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704000, while the sum is 49.

The spelling of 54645207457 in words is "fifty-four billion, six hundred forty-five million, two hundred seven thousand, four hundred fifty-seven".