25432001 has 8 divisors (see below), whose sum is σ = 29212800. Its totient is φ = 21688128.

The previous prime is 25431971. The next prime is 25432003. The reversal of 25432001 is 10023452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-25432001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25432003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7736 + ... + 10521.

It is an arithmetic number, because the mean of its divisors is an integer number (3651600).

Almost surely, 2^25432001 is an apocalyptic number.

It is an amenable number.

25432001 is a deficient number, since it is larger than the sum of its proper divisors (3780799).

25432001 is a wasteful number, since it uses less digits than its factorization.

25432001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18463.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 25432001 is about 5043.0150703721. The cubic root of 25432001 is about 294.0764027758.

Adding to 25432001 its reverse (10023452), we get a palindrome (35455453).

The spelling of 25432001 in words is "twenty-five million, four hundred thirty-two thousand, one".