25122117 has 8 divisors (see below), whose sum is σ = 33606496. Its totient is φ = 16692912.

The previous prime is 25122103. The next prime is 25122131. The reversal of 25122117 is 71122152.

It is an interprime number because it is at equal distance from previous prime (25122103) and next prime (25122131).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25122117 - 2¹⁰ = 25121093 is a prime.

It is a super-2 number, since 2×25122117² = 1262241525123378, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25122093 and 25122102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25122137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12718 + ... + 14559.

It is an arithmetic number, because the mean of its divisors is an integer number (4200812).

Almost surely, 2^25122117 is an apocalyptic number.

It is an amenable number.

25122117 is a deficient number, since it is larger than the sum of its proper divisors (8484379).

25122117 is a wasteful number, since it uses less digits than its factorization.

25122117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27587.

The product of its digits is 280, while the sum is 21.

The square root of 25122117 is about 5012.1968237490. The cubic root of 25122117 is about 292.8770970908.

Adding to 25122117 its reverse (71122152), we get a palindrome (96244269).

The spelling of 25122117 in words is "twenty-five million, one hundred twenty-two thousand, one hundred seventeen".