53257211280 has 960 divisors, whose sum is σ = 233985024000. Its totient is φ = 10541518848.

The previous prime is 53257211243. The next prime is 53257211291. The reversal of 53257211280 is 8211275235.

53257211280 is a `hidden beast` number, since 5 + 3 + 2 + 572 + 1 + 1 + 2 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 222833401 + ... + 222833639.

It is an arithmetic number, because the mean of its divisors is an integer number (243734400).

Almost surely, 2^53257211280 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 53257211280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116992512000).

53257211280 is an abundant number, since it is smaller than the sum of its proper divisors (180727812720).

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

53257211280 is a wasteful number, since it uses less digits than its factorization.

53257211280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476 (or 467 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The spelling of 53257211280 in words is "fifty-three billion, two hundred fifty-seven million, two hundred eleven thousand, two hundred eighty".