25740026 has 8 divisors (see below), whose sum is σ = 41580084. Its totient is φ = 11880000.

The previous prime is 25740007. The next prime is 25740031. The reversal of 25740026 is 62004752.

It can be written as a sum of positive squares in 2 ways, for example, as 20241001 + 5499025 = 4499^2 + 2345^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 990001 = 25740026 / (2 + 5 + 7 + 4 + 0 + 0 + 2 + 6).

It is a junction number, because it is equal to n+sod(n) for n = 25739977 and 25740004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494975 + ... + 495026.

Almost surely, 2^25740026 is an apocalyptic number.

25740026 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

25740026 is a deficient number, since it is larger than the sum of its proper divisors (15840058).

25740026 is a wasteful number, since it uses less digits than its factorization.

25740026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990016.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 25740026 is about 5073.4629199394. The cubic root of 25740026 is about 295.2588974928.

Adding to 25740026 its reverse (62004752), we get a palindrome (87744778).

The spelling of 25740026 in words is "twenty-five million, seven hundred forty thousand, twenty-six".