25877993 has 2 divisors, whose sum is σ = 25877994. Its totient is φ = 25877992.

The previous prime is 25877987. The next prime is 25878037. The reversal of 25877993 is 39977852.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14500864 + 11377129 = 3808^2 + 3373^2 .

It is a cyclic number.

It is not a de Polignac number, because 25877993 - 2⁴ = 25877977 is a prime.

It is not a weakly prime, because it can be changed into another prime (25877903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12938996 + 12938997.

It is an arithmetic number, because the mean of its divisors is an integer number (12938997).

Almost surely, 2^25877993 is an apocalyptic number.

It is an amenable number.

25877993 is a deficient number, since it is larger than the sum of its proper divisors (1).

25877993 is an equidigital number, since it uses as much as digits as its factorization.

25877993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 952560, while the sum is 50.

The square root of 25877993 is about 5087.0416746868. The cubic root of 25877993 is about 295.7854887558.

The spelling of 25877993 in words is "twenty-five million, eight hundred seventy-seven thousand, nine hundred ninety-three".