25500005803 has 2 divisors, whose sum is σ = 25500005804. Its totient is φ = 25500005802.

The previous prime is 25500005759. The next prime is 25500005809. The reversal of 25500005803 is 30850000552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25500005803 - 2²⁹ = 24963134891 is a prime.

It is not a weakly prime, because it can be changed into another prime (25500005809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12750002901 + 12750002902.

It is an arithmetic number, because the mean of its divisors is an integer number (12750002902).

Almost surely, 2^25500005803 is an apocalyptic number.

25500005803 is a deficient number, since it is larger than the sum of its proper divisors (1).

25500005803 is an equidigital number, since it uses as much as digits as its factorization.

25500005803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 25500005803 in words is "twenty-five billion, five hundred million, five thousand, eight hundred three".