20016875 has 10 divisors (see below), whose sum is σ = 25013868. Its totient is φ = 16013000.

The previous prime is 20016847. The next prime is 20016883. The reversal of 20016875 is 57861002.

It is not a de Polignac number, because 20016875 - 2¹⁶ = 19951339 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 15389 + ... + 16638.

Almost surely, 2^20016875 is an apocalyptic number.

20016875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20016875 is a deficient number, since it is larger than the sum of its proper divisors (4996993).

20016875 is an frugal number, since it uses more digits than its factorization.

20016875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32047 (or 32032 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 20016875 is about 4474.0222395513. The cubic root of 20016875 is about 271.5180831935.

Adding to 20016875 its reverse (57861002), we get a palindrome (77877877).

It can be divided in two parts, 200 and 16875, that multiplied together give a cube (3375000 = 150³).

The spelling of 20016875 in words is "twenty million, sixteen thousand, eight hundred seventy-five".