25144001 has 4 divisors (see below), whose sum is σ = 25214400. Its totient is φ = 25073604.

The previous prime is 25143931. The next prime is 25144019. The reversal of 25144001 is 10044152.

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.

It is a cyclic number.

It is not a de Polignac number, because 25144001 - 2²² = 20949697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25144061) 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, 34661 + ... + 35378.

It is an arithmetic number, because the mean of its divisors is an integer number (6303600).

Almost surely, 2^25144001 is an apocalyptic number.

It is an amenable number.

25144001 is a deficient number, since it is larger than the sum of its proper divisors (70399).

25144001 is an equidigital number, since it uses as much as digits as its factorization.

25144001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70398.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 25144001 is about 5014.3794232188. The cubic root of 25144001 is about 292.9621146370.

Adding to 25144001 its reverse (10044152), we get a palindrome (35188153).

The spelling of 25144001 in words is "twenty-five million, one hundred forty-four thousand, one".