25434005 has 8 divisors (see below), whose sum is σ = 30641112. Its totient is φ = 20267008.

The previous prime is 25434001. The next prime is 25434037. The reversal of 25434005 is 50043452.

It can be written as a sum of positive squares in 4 ways, for example, as 13476241 + 11957764 = 3671^2 + 3458^2 .

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 25434005 - 2² = 25434001 is a prime.

It is a super-2 number, since 2×25434005² = 1293777220680050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25434001) 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, 8612 + ... + 11181.

It is an arithmetic number, because the mean of its divisors is an integer number (3830139).

Almost surely, 2^25434005 is an apocalyptic number.

It is an amenable number.

25434005 is a deficient number, since it is larger than the sum of its proper divisors (5207107).

25434005 is a wasteful number, since it uses less digits than its factorization.

25434005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20055.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 25434005 is about 5043.2137571196. The cubic root of 25434005 is about 294.0841268191.

Adding to 25434005 its reverse (50043452), we get a palindrome (75477457).

The spelling of 25434005 in words is "twenty-five million, four hundred thirty-four thousand, five".