53385995640 has 64 divisors (see below), whose sum is σ = 161218690560. Its totient is φ = 14141980800.

The previous prime is 53385995599. The next prime is 53385995647. The reversal of 53385995640 is 4659958335.

53385995640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53385995647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1455004 + ... + 1491243.

It is an arithmetic number, because the mean of its divisors is an integer number (2519042040).

Almost surely, 2^53385995640 is an apocalyptic number.

It is an amenable number.

53385995640 is an abundant number, since it is smaller than the sum of its proper divisors (107832694920).

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

53385995640 is a wasteful number, since it uses less digits than its factorization.

53385995640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2946412 (or 2946408 counting only the distinct ones).

The product of its (nonzero) digits is 17496000, while the sum is 57.

The spelling of 53385995640 in words is "fifty-three billion, three hundred eighty-five million, nine hundred ninety-five thousand, six hundred forty".