56671771 has 8 divisors (see below), whose sum is σ = 63136080. Its totient is φ = 50508192.

The previous prime is 56671739. The next prime is 56671777. The reversal of 56671771 is 17717665.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56671771 - 2⁵ = 56671739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56671777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74785 + ... + 75538.

It is an arithmetic number, because the mean of its divisors is an integer number (7892010).

Almost surely, 2^56671771 is an apocalyptic number.

56671771 is a deficient number, since it is larger than the sum of its proper divisors (6464309).

56671771 is a wasteful number, since it uses less digits than its factorization.

56671771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150365.

The product of its digits is 61740, while the sum is 40.

The square root of 56671771 is about 7528.0655549749. The cubic root of 56671771 is about 384.1099832350.

The spelling of 56671771 in words is "fifty-six million, six hundred seventy-one thousand, seven hundred seventy-one".