520236542 has 8 divisors (see below), whose sum is σ = 891834096. Its totient is φ = 222958512.

The previous prime is 520236527. The next prime is 520236547. The reversal of 520236542 is 245632025.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520236547) 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, 18579863 + ... + 18579890.

It is an arithmetic number, because the mean of its divisors is an integer number (111479262).

Almost surely, 2^520236542 is an apocalyptic number.

520236542 is a deficient number, since it is larger than the sum of its proper divisors (371597554).

520236542 is a wasteful number, since it uses less digits than its factorization.

520236542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37159762.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 520236542 is about 22808.6944387442. The cubic root of 520236542 is about 804.2670653510.

Adding to 520236542 its reverse (245632025), we get a palindrome (765868567).

The spelling of 520236542 in words is "five hundred twenty million, two hundred thirty-six thousand, five hundred forty-two".