56727505 has 4 divisors (see below), whose sum is σ = 68073012. Its totient is φ = 45382000.

The previous prime is 56727457. The next prime is 56727511. The reversal of 56727505 is 50572765.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50572765 = 5 ⋅10114553.

It can be written as a sum of positive squares in 2 ways, for example, as 35188624 + 21538881 = 5932^2 + 4641^2 .

It is not a de Polignac number, because 56727505 - 2²³ = 48338897 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, 5672746 + ... + 5672755.

It is an arithmetic number, because the mean of its divisors is an integer number (17018253).

Almost surely, 2^56727505 is an apocalyptic number.

It is an amenable number.

56727505 is a deficient number, since it is larger than the sum of its proper divisors (11345507).

56727505 is a wasteful number, since it uses less digits than its factorization.

56727505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11345506.

The product of its (nonzero) digits is 73500, while the sum is 37.

The square root of 56727505 is about 7531.7663930847. The cubic root of 56727505 is about 384.2358599655.

The spelling of 56727505 in words is "fifty-six million, seven hundred twenty-seven thousand, five hundred five".