53774537545457 has 4 divisors (see below), whose sum is σ = 53808209768436. Its totient is φ = 53740865322480.

The previous prime is 53774537545387. The next prime is 53774537545523. The reversal of 53774537545457 is 75454573547735.

53774537545457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12328637798656 + 41445899746801 = 3511216^2 + 6437849^2 .

It is a cyclic number.

It is not a de Polignac number, because 53774537545457 - 2²⁰ = 53774536496881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53774537445457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16836109094 + ... + 16836112287.

It is an arithmetic number, because the mean of its divisors is an integer number (13452052442109).

Almost surely, 2^{53774537545457} is an apocalyptic number.

It is an amenable number.

53774537545457 is a deficient number, since it is larger than the sum of its proper divisors (33672222979).

53774537545457 is a wasteful number, since it uses less digits than its factorization.

53774537545457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33672222978.

The product of its digits is 4321800000, while the sum is 71.

The spelling of 53774537545457 in words is "fifty-three trillion, seven hundred seventy-four billion, five hundred thirty-seven million, five hundred forty-five thousand, four hundred fifty-seven".