52257860 has 12 divisors (see below), whose sum is σ = 109741548. Its totient is φ = 20903136.

The previous prime is 52257839. The next prime is 52257869. The reversal of 52257860 is 6875225.

It can be written as a sum of positive squares in 2 ways, for example, as 12517444 + 39740416 = 3538^2 + 6304^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 52257860.

It is not an unprimeable number, because it can be changed into a prime (52257869) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1306427 + ... + 1306466.

It is an arithmetic number, because the mean of its divisors is an integer number (9145129).

Almost surely, 2^52257860 is an apocalyptic number.

It is an amenable number.

52257860 is an abundant number, since it is smaller than the sum of its proper divisors (57483688).

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

52257860 is a wasteful number, since it uses less digits than its factorization.

52257860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2612902 (or 2612900 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 52257860 is about 7228.9598145238. The cubic root of 52257860 is about 373.8670636237.

The spelling of 52257860 in words is "fifty-two million, two hundred fifty-seven thousand, eight hundred sixty".