505235156442 has 8 divisors (see below), whose sum is σ = 1010470312896. Its totient is φ = 168411718812.

The previous prime is 505235156441. The next prime is 505235156501. The reversal of 505235156442 is 244651532505.

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

505235156442 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 505235156394 and 505235156403.

It is not an unprimeable number, because it can be changed into a prime (505235156441) 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, 42102929698 + ... + 42102929709.

It is an arithmetic number, because the mean of its divisors is an integer number (126308789112).

Almost surely, 2^505235156442 is an apocalyptic number.

505235156442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505235156442 is a wasteful number, since it uses less digits than its factorization.

505235156442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84205859412.

The product of its (nonzero) digits is 720000, while the sum is 42.

Adding to 505235156442 its reverse (244651532505), we get a palindrome (749886688947).

The spelling of 505235156442 in words is "five hundred five billion, two hundred thirty-five million, one hundred fifty-six thousand, four hundred forty-two".