25711673 has 4 divisors (see below), whose sum is σ = 27689508. Its totient is φ = 23733840.

The previous prime is 25711649. The next prime is 25711691. The reversal of 25711673 is 37611752.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9966649 + 15745024 = 3157^2 + 3968^2 .

It is not a de Polignac number, because 25711673 - 2¹⁴ = 25695289 is a prime.

It is a super-2 number, since 2×25711673² = 1322180256917858, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (25711373) 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, 988898 + ... + 988923.

It is an arithmetic number, because the mean of its divisors is an integer number (6922377).

Almost surely, 2^25711673 is an apocalyptic number.

It is an amenable number.

25711673 is a deficient number, since it is larger than the sum of its proper divisors (1977835).

25711673 is a wasteful number, since it uses less digits than its factorization.

25711673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1977834.

The product of its digits is 8820, while the sum is 32.

The square root of 25711673 is about 5070.6679047242. The cubic root of 25711673 is about 295.1504470563.

The spelling of 25711673 in words is "twenty-five million, seven hundred eleven thousand, six hundred seventy-three".