125101055521 has 8 divisors (see below), whose sum is σ = 140581788480. Its totient is φ = 110457118992.

The previous prime is 125101055483. The next prime is 125101055549. The reversal of 125101055521 is 125550101521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125101055521 - 2²³ = 125092666913 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125101055521.

It is not an unprimeable number, because it can be changed into a prime (125101055021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209198791 + ... + 209199388.

It is an arithmetic number, because the mean of its divisors is an integer number (17572723560).

Almost surely, 2^125101055521 is an apocalyptic number.

It is an amenable number.

125101055521 is a deficient number, since it is larger than the sum of its proper divisors (15480732959).

125101055521 is a wasteful number, since it uses less digits than its factorization.

125101055521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418398215.

The product of its (nonzero) digits is 2500, while the sum is 28.

The spelling of 125101055521 in words is "one hundred twenty-five billion, one hundred one million, fifty-five thousand, five hundred twenty-one".