25481503 has 2 divisors, whose sum is σ = 25481504. Its totient is φ = 25481502.

The previous prime is 25481497. The next prime is 25481509. The reversal of 25481503 is 30518452.

It is a balanced prime because it is at equal distance from previous prime (25481497) and next prime (25481509).

It is a cyclic number.

It is not a de Polignac number, because 25481503 - 2¹⁷ = 25350431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25481509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12740751 + 12740752.

It is an arithmetic number, because the mean of its divisors is an integer number (12740752).

Almost surely, 2^25481503 is an apocalyptic number.

25481503 is a deficient number, since it is larger than the sum of its proper divisors (1).

25481503 is an equidigital number, since it uses as much as digits as its factorization.

25481503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 25481503 is about 5047.9206610247. The cubic root of 25481503 is about 294.2670803300.

Adding to 25481503 its reverse (30518452), we get a palindrome (55999955).

It can be divided in two parts, 2548150 and 3, that added together give a triangular number (2548153 = T₂₂₅₇).

The spelling of 25481503 in words is "twenty-five million, four hundred eighty-one thousand, five hundred three".