12625018807555 has 32 divisors (see below), whose sum is σ = 18899657948160. Its totient is φ = 7865425710720.

The previous prime is 12625018807553. The next prime is 12625018807591. The reversal of 12625018807555 is 55570881052621.

It is not a de Polignac number, because 12625018807555 - 2¹ = 12625018807553 is a prime.

It is a super-2 number, since 2×12625018807555² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a junction number, because it is equal to n+sod(n) for n = 12625018807496 and 12625018807505.

It is not an unprimeable number, because it can be changed into a prime (12625018807553) 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, 9181359 + ... + 10466488.

It is an arithmetic number, because the mean of its divisors is an integer number (590614310880).

Almost surely, 2^{12625018807555} is an apocalyptic number.

12625018807555 is a deficient number, since it is larger than the sum of its proper divisors (6274639140605).

12625018807555 is a wasteful number, since it uses less digits than its factorization.

12625018807555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19649539.

The product of its (nonzero) digits is 6720000, while the sum is 55.

The spelling of 12625018807555 in words is "twelve trillion, six hundred twenty-five billion, eighteen million, eight hundred seven thousand, five hundred fifty-five".