5115656725221 has 16 divisors (see below), whose sum is σ = 7795515657728. Its totient is φ = 2923146457200.

The previous prime is 5115656725163. The next prime is 5115656725303. The reversal of 5115656725221 is 1225276565115.

It is a happy number.

5115656725221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5115656725221 - 2¹⁴ = 5115656708837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5115656721221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2846875 + ... + 4282056.

It is an arithmetic number, because the mean of its divisors is an integer number (487219728608).

Almost surely, 2^{5115656725221} is an apocalyptic number.

It is an amenable number.

5115656725221 is a deficient number, since it is larger than the sum of its proper divisors (2679858932507).

5115656725221 is a wasteful number, since it uses less digits than its factorization.

5115656725221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7163112.

The product of its digits is 1260000, while the sum is 48.

The spelling of 5115656725221 in words is "five trillion, one hundred fifteen billion, six hundred fifty-six million, seven hundred twenty-five thousand, two hundred twenty-one".