52152685 has 32 divisors (see below), whose sum is σ = 72182880. Its totient is φ = 35831808.

The previous prime is 52152673. The next prime is 52152703. The reversal of 52152685 is 58625125.

52152685 = 5106² + 5107².

It can be written as a sum of positive squares in 16 ways, for example, as 18198756 + 33953929 = 4266^2 + 5827^2 .

It is a 7-Lehmer number, since φ(52152685) divides (52152685-1)⁷.

It is a cyclic number.

It is not a de Polignac number, because 52152685 - 2⁹ = 52152173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52152685.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120229 + ... + 120661.

It is an arithmetic number, because the mean of its divisors is an integer number (2255715).

Almost surely, 2^52152685 is an apocalyptic number.

52152685 is the 5107-th centered square number.

It is an amenable number.

52152685 is a deficient number, since it is larger than the sum of its proper divisors (20030195).

52152685 is a wasteful number, since it uses less digits than its factorization.

52152685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577.

The product of its digits is 24000, while the sum is 34.

The square root of 52152685 is about 7221.6815908762. The cubic root of 52152685 is about 373.6160782368.

The spelling of 52152685 in words is "fifty-two million, one hundred fifty-two thousand, six hundred eighty-five".