25287038941 has 2 divisors, whose sum is σ = 25287038942. Its totient is φ = 25287038940.

The previous prime is 25287038851. The next prime is 25287038981. The reversal of 25287038941 is 14983078252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25013004025 + 274034916 = 158155^2 + 16554^2 .

It is a cyclic number.

It is not a de Polignac number, because 25287038941 - 2⁹ = 25287038429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25287038981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12643519470 + 12643519471.

It is an arithmetic number, because the mean of its divisors is an integer number (12643519471).

Almost surely, 2^25287038941 is an apocalyptic number.

It is an amenable number.

25287038941 is a deficient number, since it is larger than the sum of its proper divisors (1).

25287038941 is an equidigital number, since it uses as much as digits as its factorization.

25287038941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 967680, while the sum is 49.

The spelling of 25287038941 in words is "twenty-five billion, two hundred eighty-seven million, thirty-eight thousand, nine hundred forty-one".