125855455107 has 16 divisors (see below), whose sum is σ = 179175414528. Its totient is φ = 78389240160.

The previous prime is 125855455081. The next prime is 125855455123. The reversal of 125855455107 is 701554558521.

It is not a de Polignac number, because 125855455107 - 2⁶ = 125855455043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125855455147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21206244 + ... + 21212177.

It is an arithmetic number, because the mean of its divisors is an integer number (11198463408).

Almost surely, 2^125855455107 is an apocalyptic number.

125855455107 is a deficient number, since it is larger than the sum of its proper divisors (53319959421).

125855455107 is a wasteful number, since it uses less digits than its factorization.

125855455107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42418490.

The product of its (nonzero) digits is 1400000, while the sum is 48.

The spelling of 125855455107 in words is "one hundred twenty-five billion, eight hundred fifty-five million, four hundred fifty-five thousand, one hundred seven".