52445280 has 96 divisors (see below), whose sum is σ = 169725024. Its totient is φ = 13602816.

The previous prime is 52445227. The next prime is 52445287. The reversal of 52445280 is 8254425.

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

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52445287) 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, 16284 + ... + 19236.

It is an arithmetic number, because the mean of its divisors is an integer number (1767969).

Almost surely, 2^52445280 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 52445280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84862512).

52445280 is an abundant number, since it is smaller than the sum of its proper divisors (117279744).

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

52445280 is a wasteful number, since it uses less digits than its factorization.

52445280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3008 (or 3000 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 52445280 is about 7241.9113499131. The cubic root of 52445280 is about 374.3134817252.

It can be divided in two parts, 52445 and 280, that added together give a palindrome (52725).

The spelling of 52445280 in words is "fifty-two million, four hundred forty-five thousand, two hundred eighty".