505203212442 has 32 divisors (see below), whose sum is σ = 1069953743232. Its totient is φ = 158478585344.

The previous prime is 505203212429. The next prime is 505203212443. The reversal of 505203212442 is 244212302505.

It is not an unprimeable number, because it can be changed into a prime (505203212443) 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 15 ways as a sum of consecutive naturals, for example, 742678 + ... + 1249790.

It is an arithmetic number, because the mean of its divisors is an integer number (33436054476).

Almost surely, 2^505203212442 is an apocalyptic number.

505203212442 is an abundant number, since it is smaller than the sum of its proper divisors (564750530790).

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

505203212442 is a wasteful number, since it uses less digits than its factorization.

505203212442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516902.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 505203212442 its reverse (244212302505), we get a palindrome (749415514947).

The spelling of 505203212442 in words is "five hundred five billion, two hundred three million, two hundred twelve thousand, four hundred forty-two".