56345941129 has 3 divisors (see below), whose sum is σ = 56346178503. Its totient is φ = 56345703756.

The previous prime is 56345941103. The next prime is 56345941151. The reversal of 56345941129 is 92114954365.

The square root of 56345941129 is 237373.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 11868025 + 56334073104 = 3445^2 + 237348^2 .

It is not a de Polignac number, because 56345941129 - 2⁹ = 56345940617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56345941189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 118687 + ... + 356059.

It is an arithmetic number, because the mean of its divisors is an integer number (18782059501).

Almost surely, 2^56345941129 is an apocalyptic number.

56345941129 is the 237373-rd square number.

56345941129 is the 118687-th centered octagonal number.

It is an amenable number.

56345941129 is a deficient number, since it is larger than the sum of its proper divisors (237374).

56345941129 is an frugal number, since it uses more digits than its factorization.

56345941129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474746 (or 237373 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 49.

Multiplying 56345941129 by its sum of digits (49), we get a square (2760951115321 = 1661611²).

The spelling of 56345941129 in words is "fifty-six billion, three hundred forty-five million, nine hundred forty-one thousand, one hundred twenty-nine".