25774993 has 2 divisors, whose sum is σ = 25774994. Its totient is φ = 25774992.

The previous prime is 25774951. The next prime is 25775011. The reversal of 25774993 is 39947752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25280784 + 494209 = 5028^2 + 703^2 .

It is a cyclic number.

It is not a de Polignac number, because 25774993 - 2¹³ = 25766801 is a prime.

It is not a weakly prime, because it can be changed into another prime (25774933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12887496 + 12887497.

It is an arithmetic number, because the mean of its divisors is an integer number (12887497).

Almost surely, 2^25774993 is an apocalyptic number.

It is an amenable number.

25774993 is a deficient number, since it is larger than the sum of its proper divisors (1).

25774993 is an equidigital number, since it uses as much as digits as its factorization.

25774993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 476280, while the sum is 46.

The square root of 25774993 is about 5076.9078187416. The cubic root of 25774993 is about 295.3925369112.

The spelling of 25774993 in words is "twenty-five million, seven hundred seventy-four thousand, nine hundred ninety-three".