501010100 has 36 divisors (see below), whose sum is σ = 1100971200. Its totient is φ = 197864160.

The previous prime is 501010099. The next prime is 501010117. The reversal of 501010100 is 1010105.

It is a happy number.

It is a super-2 number, since 2×501010100² = 502022240604020000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23810 + ... + 39609.

Almost surely, 2^501010100 is an apocalyptic number.

501010100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

501010100 is an abundant number, since it is smaller than the sum of its proper divisors (599961100).

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

501010100 is a wasteful number, since it uses less digits than its factorization.

501010100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63512 (or 63505 counting only the distinct ones).

The product of its (nonzero) digits is 5, while the sum is 8.

The square root of 501010100 is about 22383.2549018234. The cubic root of 501010100 is about 794.2346444043.

Adding to 501010100 its reverse (1010105), we get a palindrome (502020205).

The spelling of 501010100 in words is "five hundred one million, ten thousand, one hundred".