56945471 has 4 divisors (see below), whose sum is σ = 62122344. Its totient is φ = 51768600.

The previous prime is 56945467. The next prime is 56945477. The reversal of 56945471 is 17454965.

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 56945471 - 2² = 56945467 is a prime.

It is a super-3 number, since 3×56945471³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56945477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2588420 + ... + 2588441.

It is an arithmetic number, because the mean of its divisors is an integer number (15530586).

Almost surely, 2^56945471 is an apocalyptic number.

56945471 is a deficient number, since it is larger than the sum of its proper divisors (5176873).

56945471 is a wasteful number, since it uses less digits than its factorization.

56945471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5176872.

The product of its digits is 151200, while the sum is 41.

The square root of 56945471 is about 7546.2222999326. Note that the first 4 decimals coincide. The cubic root of 56945471 is about 384.7273517985.

The spelling of 56945471 in words is "fifty-six million, nine hundred forty-five thousand, four hundred seventy-one".