125103212655 has 32 divisors (see below), whose sum is σ = 207064885248. Its totient is φ = 64431024000.

The previous prime is 125103212651. The next prime is 125103212681. The reversal of 125103212655 is 556212301521.

It is not a de Polignac number, because 125103212655 - 2² = 125103212651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125103212651) 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 31 ways as a sum of consecutive naturals, for example, 70896 + ... + 505205.

It is an arithmetic number, because the mean of its divisors is an integer number (6470777664).

Almost surely, 2^125103212655 is an apocalyptic number.

125103212655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125103212655 is a deficient number, since it is larger than the sum of its proper divisors (81961672593).

125103212655 is a wasteful number, since it uses less digits than its factorization.

125103212655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576607.

The product of its (nonzero) digits is 18000, while the sum is 33.

The spelling of 125103212655 in words is "one hundred twenty-five billion, one hundred three million, two hundred twelve thousand, six hundred fifty-five".