55970129 has 2 divisors, whose sum is σ = 55970130. Its totient is φ = 55970128.

The previous prime is 55970111. The next prime is 55970179. The reversal of 55970129 is 92107955.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54051904 + 1918225 = 7352^2 + 1385^2 .

It is a cyclic number.

It is not a de Polignac number, because 55970129 - 2²⁴ = 39192913 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55970092 and 55970101.

It is not a weakly prime, because it can be changed into another prime (55970179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27985064 + 27985065.

It is an arithmetic number, because the mean of its divisors is an integer number (27985065).

Almost surely, 2^55970129 is an apocalyptic number.

It is an amenable number.

55970129 is a deficient number, since it is larger than the sum of its proper divisors (1).

55970129 is an equidigital number, since it uses as much as digits as its factorization.

55970129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28350, while the sum is 38.

The square root of 55970129 is about 7481.3186671870. The cubic root of 55970129 is about 382.5181992565.

The spelling of 55970129 in words is "fifty-five million, nine hundred seventy thousand, one hundred twenty-nine".