53897717350400 has 1368 divisors, whose sum is σ = 173952286150656. Its totient is φ = 16092286156800.

The previous prime is 53897717350297. The next prime is 53897717350439. The reversal of 53897717350400 is 405371779835.

It is a self number, because there is not a number n which added to its sum of digits gives 53897717350400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 424391475137 + ... + 424391475263.

Almost surely, 2^{53897717350400} is an apocalyptic number.

53897717350400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53897717350400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86976143075328).

53897717350400 is an abundant number, since it is smaller than the sum of its proper divisors (120054568800256).

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

53897717350400 is an equidigital number, since it uses as much as digits as its factorization.

53897717350400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 22226400, while the sum is 59.

The spelling of 53897717350400 in words is "fifty-three trillion, eight hundred ninety-seven billion, seven hundred seventeen million, three hundred fifty thousand, four hundred".