20125097 has 4 divisors (see below), whose sum is σ = 20230656. Its totient is φ = 20019540.

The previous prime is 20125087. The next prime is 20125099. The reversal of 20125097 is 79052102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79052102 = 2 ⋅39526051.

It is a cyclic number.

It is not a de Polignac number, because 20125097 - 2⁶ = 20125033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20125099) 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, 52493 + ... + 52874.

It is an arithmetic number, because the mean of its divisors is an integer number (5057664).

Almost surely, 2^20125097 is an apocalyptic number.

It is an amenable number.

20125097 is a deficient number, since it is larger than the sum of its proper divisors (105559).

20125097 is a wasteful number, since it uses less digits than its factorization.

20125097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105558.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 20125097 is about 4486.1004224159. The cubic root of 20125097 is about 272.0065282819.

Adding to 20125097 its reverse (79052102), we get a palindrome (99177199).

The spelling of 20125097 in words is "twenty million, one hundred twenty-five thousand, ninety-seven".