53485988641 has 12 divisors (see below), whose sum is σ = 56967558228. Its totient is φ = 50195191904.

The previous prime is 53485988623. The next prime is 53485988651. The reversal of 53485988641 is 14688958435.

It can be written as a sum of positive squares in 2 ways, for example, as 37326240000 + 16159748641 = 193200^2 + 127121^2 .

It is not a de Polignac number, because 53485988641 - 2²⁹ = 52949117729 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53485988641.

It is not an unprimeable number, because it can be changed into a prime (53485988651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 925810 + ... + 981883.

It is an arithmetic number, because the mean of its divisors is an integer number (4747296519).

Almost surely, 2^53485988641 is an apocalyptic number.

It is an amenable number.

53485988641 is a deficient number, since it is larger than the sum of its proper divisors (3481569587).

53485988641 is a wasteful number, since it uses less digits than its factorization.

53485988641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1907792 (or 1907769 counting only the distinct ones).

The product of its digits is 33177600, while the sum is 61.

The spelling of 53485988641 in words is "fifty-three billion, four hundred eighty-five million, nine hundred eighty-eight thousand, six hundred forty-one".