25794157 has 2 divisors, whose sum is σ = 25794158. Its totient is φ = 25794156.

The previous prime is 25794149. The next prime is 25794161. The reversal of 25794157 is 75149752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15515721 + 10278436 = 3939^2 + 3206^2 .

It is a cyclic number.

It is not a de Polignac number, because 25794157 - 2³ = 25794149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25794107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12897078 + 12897079.

It is an arithmetic number, because the mean of its divisors is an integer number (12897079).

Almost surely, 2^25794157 is an apocalyptic number.

It is an amenable number.

25794157 is a deficient number, since it is larger than the sum of its proper divisors (1).

25794157 is an equidigital number, since it uses as much as digits as its factorization.

25794157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88200, while the sum is 40.

The square root of 25794157 is about 5078.7948373605. The cubic root of 25794157 is about 295.4657280100.

The spelling of 25794157 in words is "twenty-five million, seven hundred ninety-four thousand, one hundred fifty-seven".