52881408 has 144 divisors (see below), whose sum is σ = 161834400. Its totient is φ = 16588800.

The previous prime is 52881391. The next prime is 52881481. The reversal of 52881408 is 80418825.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 350133 + ... + 350283.

It is an arithmetic number, because the mean of its divisors is an integer number (1123850).

Almost surely, 2^52881408 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 52881408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80917200).

52881408 is an abundant number, since it is smaller than the sum of its proper divisors (108952992).

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

52881408 is a wasteful number, since it uses less digits than its factorization.

52881408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 52881408 is about 7271.9603959318. The cubic root of 52881408 is about 375.3481992527.

The spelling of 52881408 in words is "fifty-two million, eight hundred eighty-one thousand, four hundred eight".