25123225 has 24 divisors (see below), whose sum is σ = 33078240. Its totient is φ = 18875520.

The previous prime is 25123211. The next prime is 25123243. The reversal of 25123225 is 52232152.

It is not a de Polignac number, because 25123225 - 2¹⁷ = 24992153 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25123196 and 25123205.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107709 + ... + 107941.

It is an arithmetic number, because the mean of its divisors is an integer number (1378260).

Almost surely, 2^25123225 is an apocalyptic number.

25123225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25123225 is a deficient number, since it is larger than the sum of its proper divisors (7955015).

25123225 is a wasteful number, since it uses less digits than its factorization.

25123225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 484 counting only the distinct ones).

The product of its digits is 1200, while the sum is 22.

The square root of 25123225 is about 5012.3073529064. The cubic root of 25123225 is about 292.8814027664.

Adding to 25123225 its reverse (52232152), we get a palindrome (77355377).

The spelling of 25123225 in words is "twenty-five million, one hundred twenty-three thousand, two hundred twenty-five".