25555050541 has 2 divisors, whose sum is σ = 25555050542. Its totient is φ = 25555050540.

The previous prime is 25555050533. The next prime is 25555050557. The reversal of 25555050541 is 14505055552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24642406441 + 912644100 = 156979^2 + 30210^2 .

It is a cyclic number.

It is not a de Polignac number, because 25555050541 - 2³ = 25555050533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25555050541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25555050041) 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, 12777525270 + 12777525271.

It is an arithmetic number, because the mean of its divisors is an integer number (12777525271).

Almost surely, 2^25555050541 is an apocalyptic number.

It is an amenable number.

25555050541 is a deficient number, since it is larger than the sum of its proper divisors (1).

25555050541 is an equidigital number, since it uses as much as digits as its factorization.

25555050541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 125000, while the sum is 37.

The spelling of 25555050541 in words is "twenty-five billion, five hundred fifty-five million, fifty thousand, five hundred forty-one".