56545271 has 4 divisors (see below), whose sum is σ = 58369344. Its totient is φ = 54721200.

The previous prime is 56545267. The next prime is 56545283. The reversal of 56545271 is 17254565.

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

It is not a de Polignac number, because 56545271 - 2² = 56545267 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 (56545211) 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, 911990 + ... + 912051.

It is an arithmetic number, because the mean of its divisors is an integer number (14592336).

Almost surely, 2^56545271 is an apocalyptic number.

56545271 is a deficient number, since it is larger than the sum of its proper divisors (1824073).

56545271 is a wasteful number, since it uses less digits than its factorization.

56545271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824072.

The product of its digits is 42000, while the sum is 35.

The square root of 56545271 is about 7519.6589683309. The cubic root of 56545271 is about 383.8239730500.

The spelling of 56545271 in words is "fifty-six million, five hundred forty-five thousand, two hundred seventy-one".