252578839 has 4 divisors (see below), whose sum is σ = 252732024. Its totient is φ = 252425656.

The previous prime is 252578831. The next prime is 252578863. The reversal of 252578839 is 938875252.

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 252578839 - 2³ = 252578831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252578792 and 252578801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252578831) 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 3 ways as a sum of consecutive naturals, for example, 74092 + ... + 77425.

It is an arithmetic number, because the mean of its divisors is an integer number (63183006).

Almost surely, 2^252578839 is an apocalyptic number.

252578839 is a deficient number, since it is larger than the sum of its proper divisors (153185).

252578839 is a wasteful number, since it uses less digits than its factorization.

252578839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153184.

The product of its digits is 1209600, while the sum is 49.

The square root of 252578839 is about 15892.7291237220. The cubic root of 252578839 is about 632.1192083725.

The spelling of 252578839 in words is "two hundred fifty-two million, five hundred seventy-eight thousand, eight hundred thirty-nine".