501025560 has 128 divisors (see below), whose sum is σ = 1792558080. Its totient is φ = 109536768.

The previous prime is 501025543. The next prime is 501025561. The reversal of 501025560 is 65520105.

It is a super-2 number, since 2×501025560² = 502053223546627200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 501025560.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501025561) 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, 6354 + ... + 32286.

It is an arithmetic number, because the mean of its divisors is an integer number (14004360).

Almost surely, 2^501025560 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 501025560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (896279040).

501025560 is an abundant number, since it is smaller than the sum of its proper divisors (1291532520).

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

501025560 is a wasteful number, since it uses less digits than its factorization.

501025560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25977 (or 25973 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 501025560 is about 22383.6002466091. The cubic root of 501025560 is about 794.2428137281.

Adding to 501025560 its reverse (65520105), we get a palindrome (566545665).

The spelling of 501025560 in words is "five hundred one million, twenty-five thousand, five hundred sixty".