501403563492 has 96 divisors (see below), whose sum is σ = 1279347576192. Its totient is φ = 151903420416.

The previous prime is 501403563473. The next prime is 501403563499. The reversal of 501403563492 is 294365304105.

It is not an unprimeable number, because it can be changed into a prime (501403563499) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24625188 + ... + 24645540.

It is an arithmetic number, because the mean of its divisors is an integer number (13326537252).

Almost surely, 2^501403563492 is an apocalyptic number.

501403563492 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 501403563492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (639673788096).

501403563492 is an abundant number, since it is smaller than the sum of its proper divisors (777944012700).

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

501403563492 is a wasteful number, since it uses less digits than its factorization.

501403563492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22797 (or 22795 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 42.

Adding to 501403563492 its reverse (294365304105), we get a palindrome (795768867597).

The spelling of 501403563492 in words is "five hundred one billion, four hundred three million, five hundred sixty-three thousand, four hundred ninety-two".