25755949 has 2 divisors, whose sum is σ = 25755950. Its totient is φ = 25755948.

The previous prime is 25755941. The next prime is 25755997. The reversal of 25755949 is 94955752.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25755625 + 324 = 5075^2 + 18^2 .

It is a cyclic number.

It is not a de Polignac number, because 25755949 - 2³ = 25755941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25755899 and 25755908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25755941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12877974 + 12877975.

It is an arithmetic number, because the mean of its divisors is an integer number (12877975).

Almost surely, 2^25755949 is an apocalyptic number.

It is an amenable number.

25755949 is a deficient number, since it is larger than the sum of its proper divisors (1).

25755949 is an equidigital number, since it uses as much as digits as its factorization.

25755949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 567000, while the sum is 46.

The square root of 25755949 is about 5075.0319210819. The cubic root of 25755949 is about 295.3197681684.

The spelling of 25755949 in words is "twenty-five million, seven hundred fifty-five thousand, nine hundred forty-nine".