53115620412 has 12 divisors (see below), whose sum is σ = 123936447656. Its totient is φ = 17705206800.

The previous prime is 53115620399. The next prime is 53115620413. The reversal of 53115620412 is 21402651135.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 53115620412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53115620413) 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, 2213150839 + ... + 2213150862.

Almost surely, 2^53115620412 is an apocalyptic number.

It is an amenable number.

53115620412 is an abundant number, since it is smaller than the sum of its proper divisors (70820827244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53115620412 is a wasteful number, since it uses less digits than its factorization.

53115620412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4426301708 (or 4426301706 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 53115620412 in words is "fifty-three billion, one hundred fifteen million, six hundred twenty thousand, four hundred twelve".