25772741 has 2 divisors, whose sum is σ = 25772742. Its totient is φ = 25772740.

The previous prime is 25772737. The next prime is 25772743. The reversal of 25772741 is 14727752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23961025 + 1811716 = 4895^2 + 1346^2 .

It is a cyclic number.

It is not a de Polignac number, because 25772741 - 2² = 25772737 is a prime.

Together with 25772743, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25772743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12886370 + 12886371.

It is an arithmetic number, because the mean of its divisors is an integer number (12886371).

Almost surely, 2^25772741 is an apocalyptic number.

It is an amenable number.

25772741 is a deficient number, since it is larger than the sum of its proper divisors (1).

25772741 is an equidigital number, since it uses as much as digits as its factorization.

25772741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27440, while the sum is 35.

The square root of 25772741 is about 5076.6860253516. The cubic root of 25772741 is about 295.3839336969.

The spelling of 25772741 in words is "twenty-five million, seven hundred seventy-two thousand, seven hundred forty-one".