52102689 has 4 divisors (see below), whose sum is σ = 69470256. Its totient is φ = 34735124.

The previous prime is 52102679. The next prime is 52102727. The reversal of 52102689 is 98620125.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52102689 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52102619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8683779 + ... + 8683784.

It is an arithmetic number, because the mean of its divisors is an integer number (17367564).

Almost surely, 2^52102689 is an apocalyptic number.

It is an amenable number.

52102689 is a deficient number, since it is larger than the sum of its proper divisors (17367567).

52102689 is a wasteful number, since it uses less digits than its factorization.

52102689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17367566.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 52102689 is about 7218.2192402282. The cubic root of 52102689 is about 373.4966514577.

The spelling of 52102689 in words is "fifty-two million, one hundred two thousand, six hundred eighty-nine".