25655285127 has 4 divisors (see below), whose sum is σ = 34207046840. Its totient is φ = 17103523416.

The previous prime is 25655285111. The next prime is 25655285153. The reversal of 25655285127 is 72158255652.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 25655285127 - 2⁴ = 25655285111 is a prime.

It is a super-2 number, since 2×25655285127² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25655285197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4275880852 + ... + 4275880857.

It is an arithmetic number, because the mean of its divisors is an integer number (8551761710).

Almost surely, 2^25655285127 is an apocalyptic number.

25655285127 is a deficient number, since it is larger than the sum of its proper divisors (8551761713).

25655285127 is an equidigital number, since it uses as much as digits as its factorization.

25655285127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8551761712.

The product of its digits is 1680000, while the sum is 48.

The spelling of 25655285127 in words is "twenty-five billion, six hundred fifty-five million, two hundred eighty-five thousand, one hundred twenty-seven".