52257939 has 8 divisors (see below), whose sum is σ = 69977232. Its totient is φ = 34688640.

The previous prime is 52257911. The next prime is 52257941. The reversal of 52257939 is 93975225.

52257939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 52257939 - 2⁷ = 52257811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52257939.

It is not an unprimeable number, because it can be changed into a prime (52257839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36682 + ... + 38079.

It is an arithmetic number, because the mean of its divisors is an integer number (8747154).

Almost surely, 2^52257939 is an apocalyptic number.

52257939 is a deficient number, since it is larger than the sum of its proper divisors (17719293).

52257939 is a wasteful number, since it uses less digits than its factorization.

52257939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74997.

The product of its digits is 170100, while the sum is 42.

The square root of 52257939 is about 7228.9652786550. The cubic root of 52257939 is about 373.8672520195.

The spelling of 52257939 in words is "fifty-two million, two hundred fifty-seven thousand, nine hundred thirty-nine".