25670047 has 8 divisors (see below), whose sum is σ = 28846944. Its totient is φ = 22664928.

The previous prime is 25670041. The next prime is 25670107. The reversal of 25670047 is 74007652.

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

It is not a de Polignac number, because 25670047 - 2³ = 25670039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25670041) 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, 42628 + ... + 43225.

It is an arithmetic number, because the mean of its divisors is an integer number (3605868).

Almost surely, 2^25670047 is an apocalyptic number.

25670047 is a deficient number, since it is larger than the sum of its proper divisors (3176897).

25670047 is a wasteful number, since it uses less digits than its factorization.

25670047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85889.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 25670047 is about 5066.5616546135. The cubic root of 25670047 is about 294.9910827526.

Adding to 25670047 its reverse (74007652), we get a palindrome (99677699).

The spelling of 25670047 in words is "twenty-five million, six hundred seventy thousand, forty-seven".