125125025015 has 16 divisors (see below), whose sum is σ = 155636510400. Its totient is φ = 96456095232.

The previous prime is 125125024993. The next prime is 125125025033. The reversal of 125125025015 is 510520521521.

It is a cyclic number.

It is not a de Polignac number, because 125125025015 - 2¹² = 125125020919 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 784850 + ... + 930719.

It is an arithmetic number, because the mean of its divisors is an integer number (9727281900).

Almost surely, 2^125125025015 is an apocalyptic number.

125125025015 is a deficient number, since it is larger than the sum of its proper divisors (30511485385).

125125025015 is a wasteful number, since it uses less digits than its factorization.

125125025015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716106.

The product of its (nonzero) digits is 5000, while the sum is 29.

Adding to 125125025015 its reverse (510520521521), we get a palindrome (635645546536).

The spelling of 125125025015 in words is "one hundred twenty-five billion, one hundred twenty-five million, twenty-five thousand, fifteen".