20100502 has 8 divisors (see below), whose sum is σ = 30169800. Its totient is φ = 10043904.

The previous prime is 20100497. The next prime is 20100527. The reversal of 20100502 is 20500102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4374 + ... + 7702.

It is an arithmetic number, because the mean of its divisors is an integer number (3771225).

Almost surely, 2^20100502 is an apocalyptic number.

20100502 is a deficient number, since it is larger than the sum of its proper divisors (10069298).

20100502 is a wasteful number, since it uses less digits than its factorization.

20100502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6350.

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 20100502 is about 4483.3583394594. The cubic root of 20100502 is about 271.8956761833.

Adding to 20100502 its reverse (20500102), we get a palindrome (40600604).

It can be divided in two parts, 20100 and 502, that added together give a palindrome (20602).

The spelling of 20100502 in words is "twenty million, one hundred thousand, five hundred two".