52287040 has 56 divisors (see below), whose sum is σ = 134096760. Its totient is φ = 19304448.

The previous prime is 52287007. The next prime is 52287047. The reversal of 52287040 is 4078225.

It can be written as a sum of positive squares in 4 ways, for example, as 10916416 + 41370624 = 3304^2 + 6432^2 .

It is not an unprimeable number, because it can be changed into a prime (52287047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2125 + ... + 10444.

It is an arithmetic number, because the mean of its divisors is an integer number (2394585).

Almost surely, 2^52287040 is an apocalyptic number.

It is an amenable number.

52287040 is an abundant number, since it is smaller than the sum of its proper divisors (81809720).

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

52287040 is a wasteful number, since it uses less digits than its factorization.

52287040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12599 (or 12589 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 52287040 is about 7230.9778038658. The cubic root of 52287040 is about 373.9366379167.

The spelling of 52287040 in words is "fifty-two million, two hundred eighty-seven thousand, forty".