52785129 has 8 divisors (see below), whose sum is σ = 70430400. Its totient is φ = 35164976.

The previous prime is 52785121. The next prime is 52785143. The reversal of 52785129 is 92158725.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52785129 - 2³ = 52785121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52785121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 654 + ... + 10295.

It is an arithmetic number, because the mean of its divisors is an integer number (8803800).

Almost surely, 2^52785129 is an apocalyptic number.

It is an amenable number.

52785129 is a deficient number, since it is larger than the sum of its proper divisors (17645271).

52785129 is a wasteful number, since it uses less digits than its factorization.

52785129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12559.

The product of its digits is 50400, while the sum is 39.

The square root of 52785129 is about 7265.3375007635. The cubic root of 52785129 is about 375.1202672025.

The spelling of 52785129 in words is "fifty-two million, seven hundred eighty-five thousand, one hundred twenty-nine".