56506705 has 4 divisors (see below), whose sum is σ = 67808052. Its totient is φ = 45205360.

The previous prime is 56506693. The next prime is 56506717. The reversal of 56506705 is 50760565.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (56506693) and next prime (56506717).

It can be written as a sum of positive squares in 2 ways, for example, as 40538689 + 15968016 = 6367^2 + 3996^2 .

It is not a de Polignac number, because 56506705 - 2⁵ = 56506673 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5650666 + ... + 5650675.

It is an arithmetic number, because the mean of its divisors is an integer number (16952013).

Almost surely, 2^56506705 is an apocalyptic number.

It is an amenable number.

56506705 is a deficient number, since it is larger than the sum of its proper divisors (11301347).

56506705 is a wasteful number, since it uses less digits than its factorization.

56506705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11301346.

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 56506705 is about 7517.0941859205. The cubic root of 56506705 is about 383.7366924124.

The spelling of 56506705 in words is "fifty-six million, five hundred six thousand, seven hundred five".