25748995547503 has 2 divisors, whose sum is σ = 25748995547504. Its totient is φ = 25748995547502.

The previous prime is 25748995547501. The next prime is 25748995547531. The reversal of 25748995547503 is 30574559984752.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25748995547503 - 2¹ = 25748995547501 is a prime.

Together with 25748995547501, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25748995547501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12874497773751 + 12874497773752.

It is an arithmetic number, because the mean of its divisors is an integer number (12874497773752).

Almost surely, 2^{25748995547503} is an apocalyptic number.

25748995547503 is a deficient number, since it is larger than the sum of its proper divisors (1).

25748995547503 is an equidigital number, since it uses as much as digits as its factorization.

25748995547503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1905120000, while the sum is 73.

The spelling of 25748995547503 in words is "twenty-five trillion, seven hundred forty-eight billion, nine hundred ninety-five million, five hundred forty-seven thousand, five hundred three".