25319879041 has 2 divisors, whose sum is σ = 25319879042. Its totient is φ = 25319879040.

The previous prime is 25319879023. The next prime is 25319879069. The reversal of 25319879041 is 14097891352.

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., 20987606641 + 4332272400 = 144871^2 + 65820^2 .

It is a cyclic number.

It is not a de Polignac number, because 25319879041 - 2¹⁵ = 25319846273 is a prime.

It is not a weakly prime, because it can be changed into another prime (25319879341) 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, 12659939520 + 12659939521.

It is an arithmetic number, because the mean of its divisors is an integer number (12659939521).

Almost surely, 2^25319879041 is an apocalyptic number.

It is an amenable number.

25319879041 is a deficient number, since it is larger than the sum of its proper divisors (1).

25319879041 is an equidigital number, since it uses as much as digits as its factorization.

25319879041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 49.

The spelling of 25319879041 in words is "twenty-five billion, three hundred nineteen million, eight hundred seventy-nine thousand, forty-one".