53312210640 has 400 divisors, whose sum is σ = 200968137216. Its totient is φ = 13020134400.

The previous prime is 53312210621. The next prime is 53312210689. The reversal of 53312210640 is 4601221335.

53312210640 is a `hidden beast` number, since 5 + 3 + 3 + 1 + 2 + 2 + 10 + 640 = 666.

53312210640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 11033025 + ... + 11037855.

Almost surely, 2^53312210640 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 53312210640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100484068608).

53312210640 is an abundant number, since it is smaller than the sum of its proper divisors (147655926576).

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

53312210640 is a wasteful number, since it uses less digits than its factorization.

53312210640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5000 (or 4985 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 53312210640 its reverse (4601221335), we get a palindrome (57913431975).

The spelling of 53312210640 in words is "fifty-three billion, three hundred twelve million, two hundred ten thousand, six hundred forty".