25755413 has 2 divisors, whose sum is σ = 25755414. Its totient is φ = 25755412.

The previous prime is 25755407. The next prime is 25755439. The reversal of 25755413 is 31455752.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24820324 + 935089 = 4982^2 + 967^2 .

It is a cyclic number.

It is not a de Polignac number, because 25755413 - 2¹⁰ = 25754389 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25755413.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25755113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12877706 + 12877707.

It is an arithmetic number, because the mean of its divisors is an integer number (12877707).

Almost surely, 2^25755413 is an apocalyptic number.

It is an amenable number.

25755413 is a deficient number, since it is larger than the sum of its proper divisors (1).

25755413 is an equidigital number, since it uses as much as digits as its factorization.

25755413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21000, while the sum is 32.

The square root of 25755413 is about 5074.9791132575. The cubic root of 25755413 is about 295.3177195479.

The spelling of 25755413 in words is "twenty-five million, seven hundred fifty-five thousand, four hundred thirteen".