25001940361 has 2 divisors, whose sum is σ = 25001940362. Its totient is φ = 25001940360.

The previous prime is 25001940283. The next prime is 25001940367. The reversal of 25001940361 is 16304910052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22879587600 + 2122352761 = 151260^2 + 46069^2 .

It is a cyclic number.

It is not a de Polignac number, because 25001940361 - 2⁷ = 25001940233 is a prime.

It is not a weakly prime, because it can be changed into another prime (25001940367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12500970180 + 12500970181.

It is an arithmetic number, because the mean of its divisors is an integer number (12500970181).

Almost surely, 2^25001940361 is an apocalyptic number.

It is an amenable number.

25001940361 is a deficient number, since it is larger than the sum of its proper divisors (1).

25001940361 is an equidigital number, since it uses as much as digits as its factorization.

25001940361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 31.

The spelling of 25001940361 in words is "twenty-five billion, one million, nine hundred forty thousand, three hundred sixty-one".