25049779753 has 2 divisors, whose sum is σ = 25049779754. Its totient is φ = 25049779752.

The previous prime is 25049779697. The next prime is 25049779789. The reversal of 25049779753 is 35797794052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20715269184 + 4334510569 = 143928^2 + 65837^2 .

It is a cyclic number.

It is not a de Polignac number, because 25049779753 - 2⁹ = 25049779241 is a prime.

It is not a weakly prime, because it can be changed into another prime (25059779753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12524889876 + 12524889877.

It is an arithmetic number, because the mean of its divisors is an integer number (12524889877).

Almost surely, 2^25049779753 is an apocalyptic number.

It is an amenable number.

25049779753 is a deficient number, since it is larger than the sum of its proper divisors (1).

25049779753 is an equidigital number, since it uses as much as digits as its factorization.

25049779753 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16669800, while the sum is 58.

The spelling of 25049779753 in words is "twenty-five billion, forty-nine million, seven hundred seventy-nine thousand, seven hundred fifty-three".