52506385 has 16 divisors (see below), whose sum is σ = 65480400. Its totient is φ = 40370176.

The previous prime is 52506383. The next prime is 52506407. The reversal of 52506385 is 58360525.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 219024 + 52287361 = 468^2 + 7231^2 .

It is a cyclic number.

It is not a de Polignac number, because 52506385 - 2¹ = 52506383 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52506385.

It is not an unprimeable number, because it can be changed into a prime (52506383) 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 15 ways as a sum of consecutive naturals, for example, 36561 + ... + 37969.

It is an arithmetic number, because the mean of its divisors is an integer number (4092525).

Almost surely, 2^52506385 is an apocalyptic number.

It is an amenable number.

52506385 is a deficient number, since it is larger than the sum of its proper divisors (12974015).

52506385 is a wasteful number, since it uses less digits than its factorization.

52506385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1700.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 52506385 is about 7246.1289665586. The cubic root of 52506385 is about 374.4587985710.

The spelling of 52506385 in words is "fifty-two million, five hundred six thousand, three hundred eighty-five".