501225005100 has 72 divisors (see below), whose sum is σ = 1451643495120. Its totient is φ = 133527975680.

The previous prime is 501225005011. The next prime is 501225005101. The reversal of 501225005100 is 1500522105.

It is not an unprimeable number, because it can be changed into a prime (501225005101) 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, 520755 + ... + 1128554.

It is an arithmetic number, because the mean of its divisors is an integer number (20161715210).

Almost surely, 2^501225005100 is an apocalyptic number.

501225005100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

501225005100 is an abundant number, since it is smaller than the sum of its proper divisors (950418490020).

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

501225005100 is a wasteful number, since it uses less digits than its factorization.

501225005100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650339 (or 1650332 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 21.

Adding to 501225005100 its reverse (1500522105), we get a palindrome (502725527205).

The spelling of 501225005100 in words is "five hundred one billion, two hundred twenty-five million, five thousand, one hundred".