56617650 has 96 divisors (see below), whose sum is σ = 165257280. Its totient is φ = 14204160.

The previous prime is 56617643. The next prime is 56617669. The reversal of 56617650 is 5671665.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 21717 + ... + 24183.

It is an arithmetic number, because the mean of its divisors is an integer number (1721430).

Almost surely, 2^56617650 is an apocalyptic number.

56617650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 56617650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82628640).

56617650 is an abundant number, since it is smaller than the sum of its proper divisors (108639630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56617650 is a wasteful number, since it uses less digits than its factorization.

56617650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2505 (or 2494 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 56617650 is about 7524.4700810090. The cubic root of 56617650 is about 383.9876705026.

The spelling of 56617650 in words is "fifty-six million, six hundred seventeen thousand, six hundred fifty".