53745123727105 has 4 divisors (see below), whose sum is σ = 64494148472532. Its totient is φ = 42996098981680.

The previous prime is 53745123727103. The next prime is 53745123727123. The reversal of 53745123727105 is 50172732154735.

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 12381587487504 + 41363536239601 = 3518748^2 + 6431449^2 .

It is not a de Polignac number, because 53745123727105 - 2¹ = 53745123727103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53745123727103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5374512372706 + ... + 5374512372715.

It is an arithmetic number, because the mean of its divisors is an integer number (16123537118133).

Almost surely, 2^{53745123727105} is an apocalyptic number.

It is an amenable number.

53745123727105 is a deficient number, since it is larger than the sum of its proper divisors (10749024745427).

53745123727105 is a wasteful number, since it uses less digits than its factorization.

53745123727105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10749024745426.

The product of its (nonzero) digits is 6174000, while the sum is 52.

The spelling of 53745123727105 in words is "fifty-three trillion, seven hundred forty-five billion, one hundred twenty-three million, seven hundred twenty-seven thousand, one hundred five".