53388388436 has 12 divisors (see below), whose sum is σ = 93450673428. Its totient is φ = 26688196032.

The previous prime is 53388388433. The next prime is 53388388499. The reversal of 53388388436 is 63488388335.

It can be written as a sum of positive squares in 2 ways, for example, as 14876680900 + 38511707536 = 121970^2 + 196244^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53388388433) 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, 1479491 + ... + 1515146.

It is an arithmetic number, because the mean of its divisors is an integer number (7787556119).

Almost surely, 2^53388388436 is an apocalyptic number.

It is an amenable number.

53388388436 is a deficient number, since it is larger than the sum of its proper divisors (40062284992).

53388388436 is a wasteful number, since it uses less digits than its factorization.

53388388436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2999098 (or 2999096 counting only the distinct ones).

The product of its digits is 39813120, while the sum is 59.

The spelling of 53388388436 in words is "fifty-three billion, three hundred eighty-eight million, three hundred eighty-eight thousand, four hundred thirty-six".