125614416521 has 4 divisors (see below), whose sum is σ = 137033908944. Its totient is φ = 114194924100.

The previous prime is 125614416511. The next prime is 125614416523.

125614416521 is nontrivially palindromic in base 10.

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 125614416521 - 2¹⁰ = 125614415497 is a prime.

It is a super-2 number, since 2×125614416521² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125614416523) 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, 5709746195 + ... + 5709746216.

It is an arithmetic number, because the mean of its divisors is an integer number (34258477236).

Almost surely, 2^125614416521 is an apocalyptic number.

125614416521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

125614416521 is a deficient number, since it is larger than the sum of its proper divisors (11419492423).

125614416521 is a wasteful number, since it uses less digits than its factorization.

125614416521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11419492422.

The product of its digits is 57600, while the sum is 38.

The spelling of 125614416521 in words is "one hundred twenty-five billion, six hundred fourteen million, four hundred sixteen thousand, five hundred twenty-one".