20025107 has 4 divisors (see below), whose sum is σ = 21079080. Its totient is φ = 18971136.

The previous prime is 20025079. The next prime is 20025119. The reversal of 20025107 is 70152002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70152002 = 2 ⋅35076001.

It is a cyclic number.

It is not a de Polignac number, because 20025107 - 2¹⁰ = 20024083 is a prime.

It is a super-2 number, since 2×20025107² = 802009820722898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20025127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 526958 + ... + 526995.

It is an arithmetic number, because the mean of its divisors is an integer number (5269770).

Almost surely, 2^20025107 is an apocalyptic number.

20025107 is a deficient number, since it is larger than the sum of its proper divisors (1053973).

20025107 is a wasteful number, since it uses less digits than its factorization.

20025107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053972.

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 20025107 is about 4474.9421225307. The cubic root of 20025107 is about 271.5552989682. Note that the first 3 decimals are identical.

Adding to 20025107 its reverse (70152002), we get a palindrome (90177109).

The spelling of 20025107 in words is "twenty million, twenty-five thousand, one hundred seven".