52542939 has 4 divisors (see below), whose sum is σ = 70057256. Its totient is φ = 35028624.

The previous prime is 52542883. The next prime is 52542953. The reversal of 52542939 is 93924525.

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

It is not a de Polignac number, because 52542939 - 2⁸ = 52542683 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52542897 and 52542906.

It is not an unprimeable number, because it can be changed into a prime (52542439) 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, 8757154 + ... + 8757159.

It is an arithmetic number, because the mean of its divisors is an integer number (17514314).

Almost surely, 2^52542939 is an apocalyptic number.

52542939 is a deficient number, since it is larger than the sum of its proper divisors (17514317).

52542939 is a wasteful number, since it uses less digits than its factorization.

52542939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17514316.

The product of its digits is 97200, while the sum is 39.

The square root of 52542939 is about 7248.6508399839. The cubic root of 52542939 is about 374.5456755716.

The spelling of 52542939 in words is "fifty-two million, five hundred forty-two thousand, nine hundred thirty-nine".