52102685 has 4 divisors (see below), whose sum is σ = 62523228. Its totient is φ = 41682144.

The previous prime is 52102679. The next prime is 52102727. The reversal of 52102685 is 58620125.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5508409 + 46594276 = 2347^2 + 6826^2 .

It is a cyclic number.

It is not a de Polignac number, because 52102685 - 2¹⁸ = 51840541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5210264 + ... + 5210273.

It is an arithmetic number, because the mean of its divisors is an integer number (15630807).

Almost surely, 2^52102685 is an apocalyptic number.

It is an amenable number.

52102685 is a deficient number, since it is larger than the sum of its proper divisors (10420543).

52102685 is a wasteful number, since it uses less digits than its factorization.

52102685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10420542.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 52102685 is about 7218.2189631515. The cubic root of 52102685 is about 373.4966418997.

The spelling of 52102685 in words is "fifty-two million, one hundred two thousand, six hundred eighty-five".