56140771 has 4 divisors (see below), whose sum is σ = 56274544. Its totient is φ = 56007000.

The previous prime is 56140759. The next prime is 56140789. The reversal of 56140771 is 17704165.

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

It is a cyclic number.

It is not a de Polignac number, because 56140771 - 2¹¹ = 56138723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56110771) 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, 66255 + ... + 67096.

It is an arithmetic number, because the mean of its divisors is an integer number (14068636).

Almost surely, 2^56140771 is an apocalyptic number.

56140771 is a deficient number, since it is larger than the sum of its proper divisors (133773).

56140771 is a wasteful number, since it uses less digits than its factorization.

56140771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133772.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 56140771 is about 7492.7145281266. The cubic root of 56140771 is about 382.9065459711.

The spelling of 56140771 in words is "fifty-six million, one hundred forty thousand, seven hundred seventy-one".