127775252625 has 32 divisors (see below), whose sum is σ = 215179735680. Its totient is φ = 67325739200.

The previous prime is 127775252621. The next prime is 127775252743. The reversal of 127775252625 is 526252577721.

It is not a de Polignac number, because 127775252625 - 2² = 127775252621 is a prime.

It is not an unprimeable number, because it can be changed into a prime (127775252621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2021490 + ... + 2083739.

It is an arithmetic number, because the mean of its divisors is an integer number (6724366740).

Almost surely, 2^127775252625 is an apocalyptic number.

127775252625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

127775252625 is a deficient number, since it is larger than the sum of its proper divisors (87404483055).

127775252625 is an equidigital number, since it uses as much as digits as its factorization.

127775252625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4105330 (or 4105320 counting only the distinct ones).

The product of its digits is 4116000, while the sum is 51.

The spelling of 127775252625 in words is "one hundred twenty-seven billion, seven hundred seventy-five million, two hundred fifty-two thousand, six hundred twenty-five".