25550525027767 has 2 divisors, whose sum is σ = 25550525027768. Its totient is φ = 25550525027766.

The previous prime is 25550525027749. The next prime is 25550525027773. The reversal of 25550525027767 is 76772052505552.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25550525027767 is a prime.

It is a super-3 number, since 3×25550525027767³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25550525087767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12775262513883 + 12775262513884.

It is an arithmetic number, because the mean of its divisors is an integer number (12775262513884).

Almost surely, 2^{25550525027767} is an apocalyptic number.

25550525027767 is a deficient number, since it is larger than the sum of its proper divisors (1).

25550525027767 is an equidigital number, since it uses as much as digits as its factorization.

25550525027767 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51450000, while the sum is 58.

The spelling of 25550525027767 in words is "twenty-five trillion, five hundred fifty billion, five hundred twenty-five million, twenty-seven thousand, seven hundred sixty-seven".