125015220755719 has 6 divisors (see below), whose sum is σ = 145425869042424. Its totient is φ = 107155903504860.

The previous prime is 125015220755717. The next prime is 125015220755729. The reversal of 125015220755719 is 917557022510521.

It is not a de Polignac number, because 125015220755719 - 2¹ = 125015220755717 is a prime.

It is a super-2 number, since 2×125015220755719² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125015220755717) 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, 1275665517867 + ... + 1275665517964.

It is an arithmetic number, because the mean of its divisors is an integer number (24237644840404).

Almost surely, 2^{125015220755719} is an apocalyptic number.

125015220755719 is a deficient number, since it is larger than the sum of its proper divisors (20410648286705).

125015220755719 is an equidigital number, since it uses as much as digits as its factorization.

125015220755719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2551331035845 (or 2551331035838 counting only the distinct ones).

The product of its (nonzero) digits is 2205000, while the sum is 52.

The spelling of 125015220755719 in words is "one hundred twenty-five trillion, fifteen billion, two hundred twenty million, seven hundred fifty-five thousand, seven hundred nineteen".