25424905 has 8 divisors (see below), whose sum is σ = 33283584. Its totient is φ = 18490800.

The previous prime is 25424891. The next prime is 25424921. The reversal of 25424905 is 50942452.

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

It is not a de Polignac number, because 25424905 - 2¹¹ = 25422857 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 231081 + ... + 231190.

It is an arithmetic number, because the mean of its divisors is an integer number (4160448).

Almost surely, 2^25424905 is an apocalyptic number.

It is an amenable number.

25424905 is a deficient number, since it is larger than the sum of its proper divisors (7858679).

25424905 is a wasteful number, since it uses less digits than its factorization.

25424905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462287.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 25424905 is about 5042.3114739175. The cubic root of 25424905 is about 294.0490493079.

It can be divided in two parts, 2542 and 4905, that added together give a palindrome (7447).

The spelling of 25424905 in words is "twenty-five million, four hundred twenty-four thousand, nine hundred five".