25787361 has 4 divisors (see below), whose sum is σ = 34383152. Its totient is φ = 17191572.

The previous prime is 25787357. The next prime is 25787369. The reversal of 25787361 is 16378752.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 25787361 - 2² = 25787357 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25787369) 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, 4297891 + ... + 4297896.

It is an arithmetic number, because the mean of its divisors is an integer number (8595788).

Almost surely, 2^25787361 is an apocalyptic number.

It is an amenable number.

25787361 is a deficient number, since it is larger than the sum of its proper divisors (8595791).

25787361 is an equidigital number, since it uses as much as digits as its factorization.

25787361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8595790.

The product of its digits is 70560, while the sum is 39.

The square root of 25787361 is about 5078.1257369230. The cubic root of 25787361 is about 295.4397768942.

The spelling of 25787361 in words is "twenty-five million, seven hundred eighty-seven thousand, three hundred sixty-one".