25903481 has 2 divisors, whose sum is σ = 25903482. Its totient is φ = 25903480.

The previous prime is 25903477. The next prime is 25903601. The reversal of 25903481 is 18430952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24601600 + 1301881 = 4960^2 + 1141^2 .

It is a cyclic number.

It is not a de Polignac number, because 25903481 - 2² = 25903477 is a prime.

It is a super-2 number, since 2×25903481² = 1341980655834722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25903081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12951740 + 12951741.

It is an arithmetic number, because the mean of its divisors is an integer number (12951741).

Almost surely, 2^25903481 is an apocalyptic number.

It is an amenable number.

25903481 is a deficient number, since it is larger than the sum of its proper divisors (1).

25903481 is an equidigital number, since it uses as much as digits as its factorization.

25903481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 25903481 is about 5089.5462469654. The cubic root of 25903481 is about 295.8825661807.

The spelling of 25903481 in words is "twenty-five million, nine hundred three thousand, four hundred eighty-one".