20133625 has 32 divisors (see below), whose sum is σ = 26956800. Its totient is φ = 14977600.

The previous prime is 20133623. The next prime is 20133629. The reversal of 20133625 is 52633102.

It is not a de Polignac number, because 20133625 - 2¹ = 20133623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20133596 and 20133605.

It is not an unprimeable number, because it can be changed into a prime (20133623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135051 + ... + 135199.

It is an arithmetic number, because the mean of its divisors is an integer number (842400).

Almost surely, 2^20133625 is an apocalyptic number.

20133625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20133625 is a deficient number, since it is larger than the sum of its proper divisors (6823175).

20133625 is a wasteful number, since it uses less digits than its factorization.

20133625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 20133625 is about 4487.0508131734. The cubic root of 20133625 is about 272.0449437340.

Adding to 20133625 its reverse (52633102), we get a palindrome (72766727).

The spelling of 20133625 in words is "twenty million, one hundred thirty-three thousand, six hundred twenty-five".