25794137 has 4 divisors (see below), whose sum is σ = 26683620. Its totient is φ = 24904656.

The previous prime is 25794133. The next prime is 25794149. The reversal of 25794137 is 73149752.

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 9665881 + 16128256 = 3109^2 + 4016^2 .

It is a cyclic number.

It is not a de Polignac number, because 25794137 - 2² = 25794133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25794137.

It is not an unprimeable number, because it can be changed into a prime (25794133) 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, 444698 + ... + 444755.

It is an arithmetic number, because the mean of its divisors is an integer number (6670905).

Almost surely, 2^25794137 is an apocalyptic number.

It is an amenable number.

25794137 is a deficient number, since it is larger than the sum of its proper divisors (889483).

25794137 is an equidigital number, since it uses as much as digits as its factorization.

25794137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889482.

The product of its digits is 52920, while the sum is 38.

The square root of 25794137 is about 5078.7928683891. The cubic root of 25794137 is about 295.4656516449.

The spelling of 25794137 in words is "twenty-five million, seven hundred ninety-four thousand, one hundred thirty-seven".