56782517 has 12 divisors (see below), whose sum is σ = 62818560. Its totient is φ = 51285960.

The previous prime is 56782511. The next prime is 56782529. The reversal of 56782517 is 71528765.

It is not a de Polignac number, because 56782517 - 2⁴ = 56782501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56782511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18284 + ... + 21162.

It is an arithmetic number, because the mean of its divisors is an integer number (5234880).

Almost surely, 2^56782517 is an apocalyptic number.

It is an amenable number.

56782517 is a deficient number, since it is larger than the sum of its proper divisors (6036043).

56782517 is a wasteful number, since it uses less digits than its factorization.

56782517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3064 (or 3053 counting only the distinct ones).

The product of its digits is 117600, while the sum is 41.

The square root of 56782517 is about 7535.4175066814. The cubic root of 56782517 is about 384.3600252125.

The spelling of 56782517 in words is "fifty-six million, seven hundred eighty-two thousand, five hundred seventeen".