53610621073 has 4 divisors (see below), whose sum is σ = 53642214180. Its totient is φ = 53579027968.

The previous prime is 53610621067. The next prime is 53610621083. The reversal of 53610621073 is 37012601635.

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 39074219584 + 14536401489 = 197672^2 + 120567^2 .

It is a cyclic number.

It is not a de Polignac number, because 53610621073 - 2⁹ = 53610620561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53610621013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15794008 + ... + 15797401.

It is an arithmetic number, because the mean of its divisors is an integer number (13410553545).

Almost surely, 2^53610621073 is an apocalyptic number.

It is an amenable number.

53610621073 is a deficient number, since it is larger than the sum of its proper divisors (31593107).

53610621073 is a wasteful number, since it uses less digits than its factorization.

53610621073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31593106.

The product of its (nonzero) digits is 22680, while the sum is 34.

The spelling of 53610621073 in words is "fifty-three billion, six hundred ten million, six hundred twenty-one thousand, seventy-three".