25423530361 has 2 divisors, whose sum is σ = 25423530362. Its totient is φ = 25423530360.

The previous prime is 25423530331. The next prime is 25423530397. The reversal of 25423530361 is 16303532452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23918478336 + 1505052025 = 154656^2 + 38795^2 .

It is a cyclic number.

It is not a de Polignac number, because 25423530361 - 2⁵ = 25423530329 is a prime.

It is not a weakly prime, because it can be changed into another prime (25423530331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12711765180 + 12711765181.

It is an arithmetic number, because the mean of its divisors is an integer number (12711765181).

Almost surely, 2^25423530361 is an apocalyptic number.

It is an amenable number.

25423530361 is a deficient number, since it is larger than the sum of its proper divisors (1).

25423530361 is an equidigital number, since it uses as much as digits as its factorization.

25423530361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 34.

The spelling of 25423530361 in words is "twenty-five billion, four hundred twenty-three million, five hundred thirty thousand, three hundred sixty-one".