56303617 has 4 divisors (see below), whose sum is σ = 56318976. Its totient is φ = 56288260.

The previous prime is 56303579. The next prime is 56303627. The reversal of 56303617 is 71630365.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 71630365 = 5 ⋅14326073.

It is a cyclic number.

It is not a de Polignac number, because 56303617 - 2²³ = 47915009 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56303627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1392 + ... + 10702.

It is an arithmetic number, because the mean of its divisors is an integer number (14079744).

It is a Proth number, since it is equal to 6873 ⋅ 2¹³ + 1 and 6873 < 2¹³.

Almost surely, 2^56303617 is an apocalyptic number.

It is an amenable number.

56303617 is a deficient number, since it is larger than the sum of its proper divisors (15359).

56303617 is an equidigital number, since it uses as much as digits as its factorization.

56303617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15358.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 56303617 is about 7503.5736152849. The cubic root of 56303617 is about 383.2764174267.

The spelling of 56303617 in words is "fifty-six million, three hundred three thousand, six hundred seventeen".