56953109 has 2 divisors, whose sum is σ = 56953110. Its totient is φ = 56953108.

The previous prime is 56953097. The next prime is 56953133. The reversal of 56953109 is 90135965.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52635025 + 4318084 = 7255^2 + 2078^2 .

It is a cyclic number.

It is not a de Polignac number, because 56953109 - 2²⁴ = 40175893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56953159) 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, 28476554 + 28476555.

It is an arithmetic number, because the mean of its divisors is an integer number (28476555).

Almost surely, 2^56953109 is an apocalyptic number.

It is an amenable number.

56953109 is a deficient number, since it is larger than the sum of its proper divisors (1).

56953109 is an equidigital number, since it uses as much as digits as its factorization.

56953109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36450, while the sum is 38.

The square root of 56953109 is about 7546.7283639999. The cubic root of 56953109 is about 384.7445519731.

The spelling of 56953109 in words is "fifty-six million, nine hundred fifty-three thousand, one hundred nine".