53285379840 has 1296 divisors, whose sum is σ = 238846992384. Its totient is φ = 10729635840.

The previous prime is 53285379817. The next prime is 53285379893. The reversal of 53285379840 is 4897358235.

53285379840 is a `hidden beast` number, since 5 + 3 + 28 + 537 + 9 + 84 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 419569857 + ... + 419569983.

Almost surely, 2^53285379840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53285379840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119423496192).

53285379840 is an abundant number, since it is smaller than the sum of its proper divisors (185561612544).

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

53285379840 is a wasteful number, since it uses less digits than its factorization.

53285379840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 54.

The spelling of 53285379840 in words is "fifty-three billion, two hundred eighty-five million, three hundred seventy-nine thousand, eight hundred forty".