25122123 has 32 divisors (see below), whose sum is σ = 42201600. Its totient is φ = 14642208.

The previous prime is 25122103. The next prime is 25122131. The reversal of 25122123 is 32122152.

It is not a de Polignac number, because 25122123 - 2⁸ = 25121867 is a prime.

It is a super-2 number, since 2×25122123² = 1262242128054258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25122096 and 25122105.

It is not an unprimeable number, because it can be changed into a prime (25122103) 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, 4786 + ... + 8552.

It is an arithmetic number, because the mean of its divisors is an integer number (1318800).

Almost surely, 2^25122123 is an apocalyptic number.

25122123 is a deficient number, since it is larger than the sum of its proper divisors (17079477).

25122123 is a wasteful number, since it uses less digits than its factorization.

25122123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3808 (or 3802 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 25122123 is about 5012.1974222890. The cubic root of 25122123 is about 292.8771204071.

Adding to 25122123 its reverse (32122152), we get a palindrome (57244275).

The spelling of 25122123 in words is "twenty-five million, one hundred twenty-two thousand, one hundred twenty-three".