56671743 has 4 divisors (see below), whose sum is σ = 75562328. Its totient is φ = 37781160.

The previous prime is 56671739. The next prime is 56671777. The reversal of 56671743 is 34717665.

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

It is not a de Polignac number, because 56671743 - 2² = 56671739 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 (56671343) 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, 9445288 + ... + 9445293.

It is an arithmetic number, because the mean of its divisors is an integer number (18890582).

Almost surely, 2^56671743 is an apocalyptic number.

56671743 is a deficient number, since it is larger than the sum of its proper divisors (18890585).

56671743 is a wasteful number, since it uses less digits than its factorization.

56671743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18890584.

The product of its digits is 105840, while the sum is 39.

The square root of 56671743 is about 7528.0636952672. The cubic root of 56671743 is about 384.1099199756.

The spelling of 56671743 in words is "fifty-six million, six hundred seventy-one thousand, seven hundred forty-three".