52650247 has 4 divisors (see below), whose sum is σ = 56700280. Its totient is φ = 48600216.

The previous prime is 52650229. The next prime is 52650271. The reversal of 52650247 is 74205625.

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

It is a cyclic number.

It is not a de Polignac number, because 52650247 - 2⁷ = 52650119 is a prime.

It is a super-2 number, since 2×52650247² = 5544097018322018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52650217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2024997 + ... + 2025022.

It is an arithmetic number, because the mean of its divisors is an integer number (14175070).

Almost surely, 2^52650247 is an apocalyptic number.

52650247 is a deficient number, since it is larger than the sum of its proper divisors (4050033).

52650247 is a wasteful number, since it uses less digits than its factorization.

52650247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4050032.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 52650247 is about 7256.0489937706. The cubic root of 52650247 is about 374.8004793443.

The spelling of 52650247 in words is "fifty-two million, six hundred fifty thousand, two hundred forty-seven".