53515128536 has 16 divisors (see below), whose sum is σ = 100956456600. Its totient is φ = 26593406784.

The previous prime is 53515128533. The next prime is 53515128581. The reversal of 53515128536 is 63582151535.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53515128533) 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, 20518301 + ... + 20520908.

Almost surely, 2^53515128536 is an apocalyptic number.

It is an amenable number.

53515128536 is a deficient number, since it is larger than the sum of its proper divisors (47441328064).

53515128536 is a wasteful number, since it uses less digits than its factorization.

53515128536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41039378 (or 41039374 counting only the distinct ones).

The product of its digits is 540000, while the sum is 44.

The spelling of 53515128536 in words is "fifty-three billion, five hundred fifteen million, one hundred twenty-eight thousand, five hundred thirty-six".