25123125 has 20 divisors (see below), whose sum is σ = 41861600. Its totient is φ = 13398000.

The previous prime is 25123103. The next prime is 25123129. The reversal of 25123125 is 52132152.

It is not a de Polignac number, because 25123125 - 2¹⁸ = 24860981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25123129) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4825 + ... + 8574.

It is an arithmetic number, because the mean of its divisors is an integer number (2093080).

Almost surely, 2^25123125 is an apocalyptic number.

25123125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25123125 is a deficient number, since it is larger than the sum of its proper divisors (16738475).

25123125 is an equidigital number, since it uses as much as digits as its factorization.

25123125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13422 (or 13407 counting only the distinct ones).

The product of its digits is 600, while the sum is 21.

The square root of 25123125 is about 5012.2973774508. The cubic root of 25123125 is about 292.8810141727.

Adding to 25123125 its reverse (52132152), we get a palindrome (77255277).

The spelling of 25123125 in words is "twenty-five million, one hundred twenty-three thousand, one hundred twenty-five".