501423552 has 168 divisors, whose sum is σ = 1714292736. Its totient is φ = 137009664.

The previous prime is 501423493. The next prime is 501423553. The reversal of 501423552 is 255324105.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (168).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501423553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90033 + ... + 95439.

Almost surely, 2^501423552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 501423552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (857146368).

501423552 is an abundant number, since it is smaller than the sum of its proper divisors (1212869184).

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

501423552 is a wasteful number, since it uses less digits than its factorization.

501423552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5455 (or 5442 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 501423552 is about 22392.4887406469. The cubic root of 501423552 is about 794.4530615671.

Adding to 501423552 its reverse (255324105), we get a palindrome (756747657).

The spelling of 501423552 in words is "five hundred one million, four hundred twenty-three thousand, five hundred fifty-two".