52395247 has 4 divisors (see below), whose sum is σ = 52807936. Its totient is φ = 51982560.

The previous prime is 52395223. The next prime is 52395251. The reversal of 52395247 is 74259325.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52395247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52395047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206154 + ... + 206407.

It is an arithmetic number, because the mean of its divisors is an integer number (13201984).

Almost surely, 2^52395247 is an apocalyptic number.

52395247 is a deficient number, since it is larger than the sum of its proper divisors (412689).

52395247 is a wasteful number, since it uses less digits than its factorization.

52395247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412688.

The product of its digits is 75600, while the sum is 37.

The square root of 52395247 is about 7238.4561199195. The cubic root of 52395247 is about 374.1944116828.

The spelling of 52395247 in words is "fifty-two million, three hundred ninety-five thousand, two hundred forty-seven".