56841971 has 4 divisors (see below), whose sum is σ = 57027432. Its totient is φ = 56656512.

The previous prime is 56841893. The next prime is 56841973. The reversal of 56841971 is 17914865.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17914865 = 5 ⋅3582973.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56841971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56841973) 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, 92270 + ... + 92883.

It is an arithmetic number, because the mean of its divisors is an integer number (14256858).

Almost surely, 2^56841971 is an apocalyptic number.

56841971 is a deficient number, since it is larger than the sum of its proper divisors (185461).

56841971 is a wasteful number, since it uses less digits than its factorization.

56841971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185460.

The product of its digits is 60480, while the sum is 41.

The square root of 56841971 is about 7539.3614451093. The cubic root of 56841971 is about 384.4941261716.

The spelling of 56841971 in words is "fifty-six million, eight hundred forty-one thousand, nine hundred seventy-one".