20500102 has 8 divisors (see below), whose sum is σ = 35143056. Its totient is φ = 8785752.

The previous prime is 20500097. The next prime is 20500159. The reversal of 20500102 is 20100502.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 732133 + ... + 732160.

It is an arithmetic number, because the mean of its divisors is an integer number (4392882).

Almost surely, 2^20500102 is an apocalyptic number.

20500102 is a deficient number, since it is larger than the sum of its proper divisors (14642954).

20500102 is a wasteful number, since it uses less digits than its factorization.

20500102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1464302.

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

The square root of 20500102 is about 4527.7038330704. The cubic root of 20500102 is about 273.6856376561.

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

It can be divided in two parts, 20500 and 102, that added together give a palindrome (20602).

The spelling of 20500102 in words is "twenty million, five hundred thousand, one hundred two".