25032001 has 4 divisors (see below), whose sum is σ = 25044400. Its totient is φ = 25019604.

The previous prime is 25031983. The next prime is 25032031. The reversal of 25032001 is 10023052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25032001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25032031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2391 + ... + 7468.

It is an arithmetic number, because the mean of its divisors is an integer number (6261100).

Almost surely, 2^25032001 is an apocalyptic number.

It is an amenable number.

25032001 is a deficient number, since it is larger than the sum of its proper divisors (12399).

25032001 is an equidigital number, since it uses as much as digits as its factorization.

25032001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12398.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 25032001 is about 5003.1990765909. The cubic root of 25032001 is about 292.5264826145.

Adding to 25032001 its reverse (10023052), we get a palindrome (35055053).

The spelling of 25032001 in words is "twenty-five million, thirty-two thousand, one".