20130025 has 12 divisors (see below), whose sum is σ = 26275600. Its totient is φ = 15256080.

The previous prime is 20130001. The next prime is 20130029. The reversal of 20130025 is 52003102.

It is not a de Polignac number, because 20130025 - 2⁷ = 20129897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20129987 and 20130014.

It is not an unprimeable number, because it can be changed into a prime (20130029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20715 + ... + 21664.

Almost surely, 2^20130025 is an apocalyptic number.

20130025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20130025 is a deficient number, since it is larger than the sum of its proper divisors (6145575).

20130025 is a wasteful number, since it uses less digits than its factorization.

20130025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42408 (or 42403 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 20130025 is about 4486.6496408790. The cubic root of 20130025 is about 272.0287284031.

Adding to 20130025 its reverse (52003102), we get a palindrome (72133127).

The spelling of 20130025 in words is "twenty million, one hundred thirty thousand, twenty-five".