25713489 has 16 divisors (see below), whose sum is σ = 34977024. Its totient is φ = 16800000.

The previous prime is 25713463. The next prime is 25713551. The reversal of 25713489 is 98431752.

It is not a de Polignac number, because 25713489 - 2⁷ = 25713361 is a prime.

It is a super-2 number, since 2×25713489² = 1322367033106242, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25713419) 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 15 ways as a sum of consecutive naturals, for example, 33864 + ... + 34614.

It is an arithmetic number, because the mean of its divisors is an integer number (2186064).

Almost surely, 2^25713489 is an apocalyptic number.

It is an amenable number.

25713489 is a deficient number, since it is larger than the sum of its proper divisors (9263535).

25713489 is a wasteful number, since it uses less digits than its factorization.

25713489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968.

The product of its digits is 60480, while the sum is 39.

The square root of 25713489 is about 5070.8469706746. The cubic root of 25713489 is about 295.1573956589.

The spelling of 25713489 in words is "twenty-five million, seven hundred thirteen thousand, four hundred eighty-nine".