52387305 has 8 divisors (see below), whose sum is σ = 83819712. Its totient is φ = 27939888.

The previous prime is 52387297. The next prime is 52387331. The reversal of 52387305 is 50378325.

52387305 = 718² + 719² + ... + 807².

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

It is not a de Polignac number, because 52387305 - 2³ = 52387297 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1746229 + ... + 1746258.

It is an arithmetic number, because the mean of its divisors is an integer number (10477464).

Almost surely, 2^52387305 is an apocalyptic number.

It is an amenable number.

52387305 is a deficient number, since it is larger than the sum of its proper divisors (31432407).

52387305 is a wasteful number, since it uses less digits than its factorization.

52387305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3492495.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 52387305 is about 7237.9075014814. The cubic root of 52387305 is about 374.1755041015.

The spelling of 52387305 in words is "fifty-two million, three hundred eighty-seven thousand, three hundred five".