52656247 has 4 divisors (see below), whose sum is σ = 60178576. Its totient is φ = 45133920.

The previous prime is 52656221. The next prime is 52656271. The reversal of 52656247 is 74265625.

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-52656247 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 (52656647) 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, 3761154 + ... + 3761167.

It is an arithmetic number, because the mean of its divisors is an integer number (15044644).

Almost surely, 2^52656247 is an apocalyptic number.

52656247 is a deficient number, since it is larger than the sum of its proper divisors (7522329).

52656247 is an equidigital number, since it uses as much as digits as its factorization.

52656247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7522328.

The product of its digits is 100800, while the sum is 37.

The square root of 52656247 is about 7256.4624301377. The cubic root of 52656247 is about 374.8147161719.

The spelling of 52656247 in words is "fifty-two million, six hundred fifty-six thousand, two hundred forty-seven".