25500502747 has 2 divisors, whose sum is σ = 25500502748. Its totient is φ = 25500502746.

The previous prime is 25500502697. The next prime is 25500502751. The reversal of 25500502747 is 74720500552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25500502747 - 2⁷ = 25500502619 is a prime.

It is not a weakly prime, because it can be changed into another prime (25500503747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12750251373 + 12750251374.

It is an arithmetic number, because the mean of its divisors is an integer number (12750251374).

Almost surely, 2^25500502747 is an apocalyptic number.

25500502747 is a deficient number, since it is larger than the sum of its proper divisors (1).

25500502747 is an equidigital number, since it uses as much as digits as its factorization.

25500502747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98000, while the sum is 37.

The spelling of 25500502747 in words is "twenty-five billion, five hundred million, five hundred two thousand, seven hundred forty-seven".