20023875 has 64 divisors (see below), whose sum is σ = 39312000. Its totient is φ = 10022400.

The previous prime is 20023859. The next prime is 20023889. The reversal of 20023875 is 57832002.

It is not a de Polignac number, because 20023875 - 2⁴ = 20023859 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 57201 + ... + 57549.

It is an arithmetic number, because the mean of its divisors is an integer number (614250).

Almost surely, 2^20023875 is an apocalyptic number.

20023875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20023875 is a deficient number, since it is larger than the sum of its proper divisors (19288125).

20023875 is a wasteful number, since it uses less digits than its factorization.

20023875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390 (or 374 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 20023875 is about 4474.8044650018. The cubic root of 20023875 is about 271.5497299095.

Adding to 20023875 its reverse (57832002), we get a palindrome (77855877).

The spelling of 20023875 in words is "twenty million, twenty-three thousand, eight hundred seventy-five".