25432005 has 8 divisors (see below), whose sum is σ = 40691232. Its totient is φ = 13563728.

The previous prime is 25432003. The next prime is 25432019. The reversal of 25432005 is 50023452.

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

It is a cyclic number.

It is not a de Polignac number, because 25432005 - 2¹ = 25432003 is a prime.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 847719 + ... + 847748.

It is an arithmetic number, because the mean of its divisors is an integer number (5086404).

Almost surely, 2^25432005 is an apocalyptic number.

It is an amenable number.

25432005 is a deficient number, since it is larger than the sum of its proper divisors (15259227).

25432005 is a wasteful number, since it uses less digits than its factorization.

25432005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1695475.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 25432005 is about 5043.0154669602. The cubic root of 25432005 is about 294.0764181934.

Adding to 25432005 its reverse (50023452), we get a palindrome (75455457).

The spelling of 25432005 in words is "twenty-five million, four hundred thirty-two thousand, five".