56565650 has 36 divisors (see below), whose sum is σ = 108001086. Its totient is φ = 22041600.

The previous prime is 56565617. The next prime is 56565667. The reversal of 56565650 is 5656565.

It is a happy number.

It can be written as a sum of positive squares in 9 ways, for example, as 8637721 + 47927929 = 2939^2 + 6923^2 .

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 83714 + ... + 84386.

Almost surely, 2^56565650 is an apocalyptic number.

56565650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56565650 is a deficient number, since it is larger than the sum of its proper divisors (51435436).

56565650 is a wasteful number, since it uses less digits than its factorization.

56565650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767 (or 721 counting only the distinct ones).

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

The square root of 56565650 is about 7521.0138944161. The cubic root of 56565650 is about 383.8700777558.

The spelling of 56565650 in words is "fifty-six million, five hundred sixty-five thousand, six hundred fifty".