125504120255413 has 4 divisors (see below), whose sum is σ = 126407027595520. Its totient is φ = 124601212915308.

The previous prime is 125504120255389. The next prime is 125504120255489. The reversal of 125504120255413 is 314552021405521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 125504120255413 - 2⁴⁵ = 90319748166581 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 (125504120225413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451453669845 + ... + 451453670122.

It is an arithmetic number, because the mean of its divisors is an integer number (31601756898880).

Almost surely, 2^{125504120255413} is an apocalyptic number.

It is an amenable number.

125504120255413 is a deficient number, since it is larger than the sum of its proper divisors (902907340107).

125504120255413 is an equidigital number, since it uses as much as digits as its factorization.

125504120255413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902907340106.

The product of its (nonzero) digits is 240000, while the sum is 40.

The spelling of 125504120255413 in words is "one hundred twenty-five trillion, five hundred four billion, one hundred twenty million, two hundred fifty-five thousand, four hundred thirteen".