52287144 has 128 divisors (see below), whose sum is σ = 163296000. Its totient is φ = 13584384.

The previous prime is 52287143. The next prime is 52287227. The reversal of 52287144 is 44178225.

It is not an unprimeable number, because it can be changed into a prime (52287143) 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, 194242 + ... + 194510.

It is an arithmetic number, because the mean of its divisors is an integer number (1275750).

Almost surely, 2^52287144 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 52287144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81648000).

52287144 is an abundant number, since it is smaller than the sum of its proper divisors (111008856).

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

52287144 is a wasteful number, since it uses less digits than its factorization.

52287144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387 (or 383 counting only the distinct ones).

The product of its digits is 17920, while the sum is 33.

The square root of 52287144 is about 7230.9849951442. The cubic root of 52287144 is about 373.9368858391.

The spelling of 52287144 in words is "fifty-two million, two hundred eighty-seven thousand, one hundred forty-four".