52423247 has 4 divisors (see below), whose sum is σ = 52451496. Its totient is φ = 52395000.

The previous prime is 52423199. The next prime is 52423253. The reversal of 52423247 is 74232425.

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 52423247 - 2¹⁴ = 52406863 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 (52443247) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 11129 + ... + 15122.

It is an arithmetic number, because the mean of its divisors is an integer number (13112874).

Almost surely, 2^52423247 is an apocalyptic number.

52423247 is a deficient number, since it is larger than the sum of its proper divisors (28249).

52423247 is a wasteful number, since it uses less digits than its factorization.

52423247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28248.

The product of its digits is 13440, while the sum is 29.

The square root of 52423247 is about 7240.3899756850. The cubic root of 52423247 is about 374.2610562629.

The spelling of 52423247 in words is "fifty-two million, four hundred twenty-three thousand, two hundred forty-seven".