56129266 has 4 divisors (see below), whose sum is σ = 84193902. Its totient is φ = 28064632.

The previous prime is 56129261. The next prime is 56129273. The reversal of 56129266 is 66292165.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 54982225 + 1147041 = 7415^2 + 1071^2 .

It is not an unprimeable number, because it can be changed into a prime (56129261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14032315 + ... + 14032318.

Almost surely, 2^56129266 is an apocalyptic number.

56129266 is a deficient number, since it is larger than the sum of its proper divisors (28064636).

56129266 is a wasteful number, since it uses less digits than its factorization.

56129266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28064635.

The product of its digits is 38880, while the sum is 37.

The square root of 56129266 is about 7491.9467430034. The cubic root of 56129266 is about 382.8803876747.

It can be divided in two parts, 5612 and 9266, that added together give a triangular number (14878 = T₁₇₂).

The spelling of 56129266 in words is "fifty-six million, one hundred twenty-nine thousand, two hundred sixty-six".