52281888 has 96 divisors (see below), whose sum is σ = 144789120. Its totient is φ = 16496640.

The previous prime is 52281881. The next prime is 52281917. The reversal of 52281888 is 88818225.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (52281881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145453 + ... + 145811.

It is an arithmetic number, because the mean of its divisors is an integer number (1508220).

Almost surely, 2^52281888 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 52281888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72394560).

52281888 is an abundant number, since it is smaller than the sum of its proper divisors (92507232).

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

52281888 is a wasteful number, since it uses less digits than its factorization.

52281888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450 (or 442 counting only the distinct ones).

The product of its digits is 81920, while the sum is 42.

The square root of 52281888 is about 7230.6215500467. The cubic root of 52281888 is about 373.9243558111.

The spelling of 52281888 in words is "fifty-two million, two hundred eighty-one thousand, eight hundred eighty-eight".