25011625 has 16 divisors (see below), whose sum is σ = 31653648. Its totient is φ = 19728000.

The previous prime is 25011611. The next prime is 25011629. The reversal of 25011625 is 52611052.

It can be written as a sum of positive squares in 8 ways, for example, as 9809424 + 15202201 = 3132^2 + 3899^2 .

It is not a de Polignac number, because 25011625 - 2⁹ = 25011113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25011596 and 25011605.

It is not an unprimeable number, because it can be changed into a prime (25011629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7755 + ... + 10495.

It is an arithmetic number, because the mean of its divisors is an integer number (1978353).

Almost surely, 2^25011625 is an apocalyptic number.

25011625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25011625 is a deficient number, since it is larger than the sum of its proper divisors (6642023).

25011625 is an equidigital number, since it uses as much as digits as its factorization.

25011625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2829 (or 2819 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 25011625 is about 5001.1623648908. The cubic root of 25011625 is about 292.4470890731.

Adding to 25011625 its reverse (52611052), we get a palindrome (77622677).

The spelling of 25011625 in words is "twenty-five million, eleven thousand, six hundred twenty-five".