501226253312 has 44 divisors (see below), whose sum is σ = 1011691037136. Its totient is φ = 248179937280.

The previous prime is 501226253287. The next prime is 501226253323. The reversal of 501226253312 is 213352622105.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

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, 2270639 + ... + 2481582.

Almost surely, 2^501226253312 is an apocalyptic number.

It is an amenable number.

501226253312 is an abundant number, since it is smaller than the sum of its proper divisors (510464783824).

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

501226253312 is a wasteful number, since it uses less digits than its factorization.

501226253312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4752344 (or 4752326 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 501226253312 its reverse (213352622105), we get a palindrome (714578875417).

The spelling of 501226253312 in words is "five hundred one billion, two hundred twenty-six million, two hundred fifty-three thousand, three hundred twelve".