56929121 has 2 divisors, whose sum is σ = 56929122. Its totient is φ = 56929120.

The previous prime is 56929109. The next prime is 56929127. The reversal of 56929121 is 12192965.

56929121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47541025 + 9388096 = 6895^2 + 3064^2 .

It is a cyclic number.

It is not a de Polignac number, because 56929121 - 2⁶ = 56929057 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (56929127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28464560 + 28464561.

It is an arithmetic number, because the mean of its divisors is an integer number (28464561).

Almost surely, 2^56929121 is an apocalyptic number.

It is an amenable number.

56929121 is a deficient number, since it is larger than the sum of its proper divisors (1).

56929121 is an equidigital number, since it uses as much as digits as its factorization.

56929121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 35.

The square root of 56929121 is about 7545.1388986552. The cubic root of 56929121 is about 384.6905277151.

The spelling of 56929121 in words is "fifty-six million, nine hundred twenty-nine thousand, one hundred twenty-one".