25703971 has 4 divisors (see below), whose sum is σ = 26250912. Its totient is φ = 25157032.

The previous prime is 25703963. The next prime is 25704013. The reversal of 25703971 is 17930752.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 25703971 - 2³ = 25703963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25703921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273400 + ... + 273493.

It is an arithmetic number, because the mean of its divisors is an integer number (6562728).

Almost surely, 2^25703971 is an apocalyptic number.

25703971 is a deficient number, since it is larger than the sum of its proper divisors (546941).

25703971 is an equidigital number, since it uses as much as digits as its factorization.

25703971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546940.

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 25703971 is about 5069.9083818152. The cubic root of 25703971 is about 295.1209730794.

The spelling of 25703971 in words is "twenty-five million, seven hundred three thousand, nine hundred seventy-one".