53780338560 has 384 divisors, whose sum is σ = 187348744800. Its totient is φ = 13044547584.

The previous prime is 53780338553. The next prime is 53780338589. The reversal of 53780338560 is 6583308735.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 234848526 + ... + 234848754.

Almost surely, 2^53780338560 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 53780338560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93674372400).

53780338560 is an abundant number, since it is smaller than the sum of its proper divisors (133568406240).

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

53780338560 is a wasteful number, since it uses less digits than its factorization.

53780338560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458 (or 349 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 48.

The spelling of 53780338560 in words is "fifty-three billion, seven hundred eighty million, three hundred thirty-eight thousand, five hundred sixty".