53601453440 has 64 divisors (see below), whose sum is σ = 128312752320. Its totient is φ = 21411840000.

The previous prime is 53601453439. The next prime is 53601453467. The reversal of 53601453440 is 4435410635.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 53601453440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424880 + ... + 536400.

It is an arithmetic number, because the mean of its divisors is an integer number (2004886755).

Almost surely, 2^53601453440 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 53601453440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64156376160).

53601453440 is an abundant number, since it is smaller than the sum of its proper divisors (74711298880).

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

53601453440 is a wasteful number, since it uses less digits than its factorization.

53601453440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112291 (or 112279 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

The spelling of 53601453440 in words is "fifty-three billion, six hundred one million, four hundred fifty-three thousand, four hundred forty".