56657266 has 4 divisors (see below), whose sum is σ = 84985902. Its totient is φ = 28328632.

The previous prime is 56657261. The next prime is 56657281. The reversal of 56657266 is 66275665.

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., 54331641 + 2325625 = 7371^2 + 1525^2 .

It is not an unprimeable number, because it can be changed into a prime (56657261) 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, 14164315 + ... + 14164318.

Almost surely, 2^56657266 is an apocalyptic number.

56657266 is a deficient number, since it is larger than the sum of its proper divisors (28328636).

56657266 is a wasteful number, since it uses less digits than its factorization.

56657266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28328635.

The product of its digits is 453600, while the sum is 43.

The square root of 56657266 is about 7527.1020984174. The cubic root of 56657266 is about 384.0772097712.

The spelling of 56657266 in words is "fifty-six million, six hundred fifty-seven thousand, two hundred sixty-six".