25024907261 has 2 divisors, whose sum is σ = 25024907262. Its totient is φ = 25024907260.

The previous prime is 25024907227. The next prime is 25024907267. The reversal of 25024907261 is 16270942052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22525507225 + 2499400036 = 150085^2 + 49994^2 .

It is a cyclic number.

It is not a de Polignac number, because 25024907261 - 2⁶ = 25024907197 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25024907267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12512453630 + 12512453631.

It is an arithmetic number, because the mean of its divisors is an integer number (12512453631).

Almost surely, 2^25024907261 is an apocalyptic number.

It is an amenable number.

25024907261 is a deficient number, since it is larger than the sum of its proper divisors (1).

25024907261 is an equidigital number, since it uses as much as digits as its factorization.

25024907261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 25024907261 in words is "twenty-five billion, twenty-four million, nine hundred seven thousand, two hundred sixty-one".