501425800 has 48 divisors (see below), whose sum is σ = 1168675200. Its totient is φ = 200078400.

The previous prime is 501425797. The next prime is 501425807. The reversal of 501425800 is 8524105.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (501425807) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84945 + ... + 90655.

It is an arithmetic number, because the mean of its divisors is an integer number (24347400).

Almost surely, 2^501425800 is an apocalyptic number.

501425800 is a gapful number since it is divisible by the number (50) 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 501425800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (584337600).

501425800 is an abundant number, since it is smaller than the sum of its proper divisors (667249400).

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

501425800 is a wasteful number, since it uses less digits than its factorization.

501425800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6166 (or 6157 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 501425800 is about 22392.5389359938. The cubic root of 501425800 is about 794.4542488054.

Adding to 501425800 its reverse (8524105), we get a palindrome (509949905).

The spelling of 501425800 in words is "five hundred one million, four hundred twenty-five thousand, eight hundred".