53075778280 has 128 divisors (see below), whose sum is σ = 141914695680. Its totient is φ = 17481461760.

The previous prime is 53075778263. The next prime is 53075778281. The reversal of 53075778280 is 8287757035.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (53075778281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1166844 + ... + 1211476.

It is an arithmetic number, because the mean of its divisors is an integer number (1108708560).

Almost surely, 2^53075778280 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 53075778280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70957347840).

53075778280 is an abundant number, since it is smaller than the sum of its proper divisors (88838917400).

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

53075778280 is a wasteful number, since it uses less digits than its factorization.

53075778280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44819 (or 44815 counting only the distinct ones).

The product of its (nonzero) digits is 3292800, while the sum is 52.

The spelling of 53075778280 in words is "fifty-three billion, seventy-five million, seven hundred seventy-eight thousand, two hundred eighty".