53112515986 has 8 divisors (see below), whose sum is σ = 79727315004. Its totient is φ = 26536744320.

The previous prime is 53112515969. The next prime is 53112515987. The reversal of 53112515986 is 68951521135.

It can be written as a sum of positive squares in 2 ways, for example, as 52908740361 + 203775625 = 230019^2 + 14275^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (53112515987) 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, 9753435 + ... + 9758878.

Almost surely, 2^53112515986 is an apocalyptic number.

53112515986 is a deficient number, since it is larger than the sum of its proper divisors (26614799018).

53112515986 is a wasteful number, since it uses less digits than its factorization.

53112515986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19513676.

The product of its digits is 324000, while the sum is 46.

The spelling of 53112515986 in words is "fifty-three billion, one hundred twelve million, five hundred fifteen thousand, nine hundred eighty-six".