53929121 has 2 divisors, whose sum is σ = 53929122. Its totient is φ = 53929120.

The previous prime is 53929111. The next prime is 53929123. The reversal of 53929121 is 12192935.

53929121 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., 53816896 + 112225 = 7336^2 + 335^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53929121 is a prime.

Together with 53929123, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53929123) 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, 26964560 + 26964561.

It is an arithmetic number, because the mean of its divisors is an integer number (26964561).

Almost surely, 2^53929121 is an apocalyptic number.

It is an amenable number.

53929121 is a deficient number, since it is larger than the sum of its proper divisors (1).

53929121 is an equidigital number, since it uses as much as digits as its factorization.

53929121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4860, while the sum is 32.

The square root of 53929121 is about 7343.6449396740. The cubic root of 53929121 is about 377.8108685899.

The spelling of 53929121 in words is "fifty-three million, nine hundred twenty-nine thousand, one hundred twenty-one".