52275840 has 128 divisors (see below), whose sum is σ = 175521600. Its totient is φ = 13197312.

The previous prime is 52275793. The next prime is 52275863. The reversal of 52275840 is 4857225.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35764 + ... + 37196.

Almost surely, 2^52275840 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 52275840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87760800).

52275840 is an abundant number, since it is smaller than the sum of its proper divisors (123245760).

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

52275840 is a wasteful number, since it uses less digits than its factorization.

52275840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474 (or 1462 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 52275840 is about 7230.2033166433. The cubic root of 52275840 is about 373.9099366575.

The spelling of 52275840 in words is "fifty-two million, two hundred seventy-five thousand, eight hundred forty".