127752502525 has 6 divisors (see below), whose sum is σ = 158413103162.
Its totient is φ = 102202002000.
The previous prime is 127752502519. The next prime is 127752502529. The reversal of 127752502525 is 525205257721.
It can be written as a sum of positive squares in 3 ways, for example, as 23117073849 + 104635428676 = 152043^2 + 323474^2
It is not a de Polignac number, because 127752502525 - 23 = 127752502517 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (127752502529) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2555050026 + ... + 2555050075.
Almost surely, 2127752502525 is an apocalyptic number.
It is an amenable number.
127752502525 is a deficient number, since it is larger than the sum of its proper divisors (30660600637).
127752502525 is an equidigital number, since it uses as much as digits as its factorization.
127752502525 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5110100111 (or 5110100106 counting only the distinct ones).
The product of its (nonzero) digits is 490000, while the sum is 43.
The spelling of 127752502525 in words is "one hundred twenty-seven billion, seven hundred fifty-two million, five hundred two thousand, five hundred twenty-five".