25501065466931 has 2 divisors, whose sum is σ = 25501065466932. Its totient is φ = 25501065466930.

The previous prime is 25501065466843. The next prime is 25501065466949. The reversal of 25501065466931 is 13966456010552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25501065466931 - 2¹⁴ = 25501065450547 is a prime.

It is a super-2 number, since 2×25501065466931² (a number of 28 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (25501065466531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12750532733465 + 12750532733466.

It is an arithmetic number, because the mean of its divisors is an integer number (12750532733466).

Almost surely, 2^{25501065466931} is an apocalyptic number.

25501065466931 is a deficient number, since it is larger than the sum of its proper divisors (1).

25501065466931 is an equidigital number, since it uses as much as digits as its factorization.

25501065466931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832000, while the sum is 53.

The spelling of 25501065466931 in words is "twenty-five trillion, five hundred one billion, sixty-five million, four hundred sixty-six thousand, nine hundred thirty-one".