56877003121 has 9 divisors (see below), whose sum is σ = 57706550233. Its totient is φ = 56059224340.

The previous prime is 56877003109. The next prime is 56877003133. The reversal of 56877003121 is 12130077865.

The square root of 56877003121 is 238489.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (56877003109) and next prime (56877003133).

It is not a de Polignac number, because 56877003121 - 2⁵ = 56877003089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56875003121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 16931040 + ... + 16934398.

Almost surely, 2^56877003121 is an apocalyptic number.

56877003121 is the 238489-th square number.

56877003121 is the 119245-th centered octagonal number.

It is an amenable number.

56877003121 is a deficient number, since it is larger than the sum of its proper divisors (829547112).

56877003121 is an frugal number, since it uses more digits than its factorization.

56877003121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6860 (or 3430 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 40.

The spelling of 56877003121 in words is "fifty-six billion, eight hundred seventy-seven million, three thousand, one hundred twenty-one".