56556650 has 12 divisors (see below), whose sum is σ = 105195462. Its totient is φ = 22622640.

The previous prime is 56556649. The next prime is 56556659. The reversal of 56556650 is 5665565.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 50140561 + 6416089 = 7081^2 + 2533^2 .

It is not an unprimeable number, because it can be changed into a prime (56556659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 565517 + ... + 565616.

Almost surely, 2^56556650 is an apocalyptic number.

56556650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56556650 is a deficient number, since it is larger than the sum of its proper divisors (48638812).

56556650 is a wasteful number, since it uses less digits than its factorization.

56556650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131145 (or 1131140 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 38.

The square root of 56556650 is about 7520.4155470293. The cubic root of 56556650 is about 383.8497178498.

The spelling of 56556650 in words is "fifty-six million, five hundred fifty-six thousand, six hundred fifty".