53007156505 has 4 divisors (see below), whose sum is σ = 63608587812. Its totient is φ = 42405725200.

The previous prime is 53007156497. The next prime is 53007156509. The reversal of 53007156505 is 50565170035.

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 5507569369 + 47499587136 = 74213^2 + 217944^2 .

It is not a de Polignac number, because 53007156505 - 2³ = 53007156497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53007156509) 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, 5300715646 + ... + 5300715655.

It is an arithmetic number, because the mean of its divisors is an integer number (15902146953).

Almost surely, 2^53007156505 is an apocalyptic number.

It is an amenable number.

53007156505 is a deficient number, since it is larger than the sum of its proper divisors (10601431307).

53007156505 is a wasteful number, since it uses less digits than its factorization.

53007156505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10601431306.

The product of its (nonzero) digits is 78750, while the sum is 37.

The spelling of 53007156505 in words is "fifty-three billion, seven million, one hundred fifty-six thousand, five hundred five".