25787573 has 12 divisors (see below), whose sum is σ = 30697920. Its totient is φ = 21587832.

The previous prime is 25787527. The next prime is 25787599. The reversal of 25787573 is 37578752.

It is a de Polignac number, because none of the positive numbers 2^k-25787573 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 (25787173) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4013 + ... + 8226.

It is an arithmetic number, because the mean of its divisors is an integer number (2558160).

Almost surely, 2^25787573 is an apocalyptic number.

It is an amenable number.

25787573 is a deficient number, since it is larger than the sum of its proper divisors (4910347).

25787573 is a wasteful number, since it uses less digits than its factorization.

25787573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12296 (or 12289 counting only the distinct ones).

The product of its digits is 411600, while the sum is 44.

The square root of 25787573 is about 5078.1466107232. The cubic root of 25787573 is about 295.4405865035.

The spelling of 25787573 in words is "twenty-five million, seven hundred eighty-seven thousand, five hundred seventy-three".