25712671 has 8 divisors (see below), whose sum is σ = 26674688. Its totient is φ = 24759000.

The previous prime is 25712639. The next prime is 25712677. The reversal of 25712671 is 17621752.

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 25712671 - 2⁵ = 25712639 is a prime.

It is a super-2 number, since 2×25712671² = 1322282899908482, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25712677) 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, 4576 + ... + 8506.

It is an arithmetic number, because the mean of its divisors is an integer number (3334336).

Almost surely, 2^25712671 is an apocalyptic number.

25712671 is a deficient number, since it is larger than the sum of its proper divisors (962017).

25712671 is a wasteful number, since it uses less digits than its factorization.

25712671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4173.

The product of its digits is 5880, while the sum is 31.

The square root of 25712671 is about 5070.7663128959. The cubic root of 25712671 is about 295.1542657672.

The spelling of 25712671 in words is "twenty-five million, seven hundred twelve thousand, six hundred seventy-one".