25205632 has 16 divisors (see below), whose sum is σ = 50214600. Its totient is φ = 12602752.

The previous prime is 25205629. The next prime is 25205633. The reversal of 25205632 is 23650252.

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 25205597 and 25205606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25205633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98332 + ... + 98587.

Almost surely, 2^25205632 is an apocalyptic number.

It is an amenable number.

25205632 is a deficient number, since it is larger than the sum of its proper divisors (25008968).

25205632 is an equidigital number, since it uses as much as digits as its factorization.

25205632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196933 (or 196921 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 25205632 is about 5020.5210884927. The cubic root of 25205632 is about 293.2012812416.

Adding to 25205632 its reverse (23650252), we get a palindrome (48855884).

The spelling of 25205632 in words is "twenty-five million, two hundred five thousand, six hundred thirty-two".