56645474 has 8 divisors (see below), whose sum is σ = 85923180. Its totient is φ = 28004416.

The previous prime is 56645473. The next prime is 56645489. The reversal of 56645474 is 47454665.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 51739249 + 4906225 = 7193^2 + 2215^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56645471) 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, 158939 + ... + 159294.

Almost surely, 2^56645474 is an apocalyptic number.

56645474 is a deficient number, since it is larger than the sum of its proper divisors (29277706).

56645474 is a wasteful number, since it uses less digits than its factorization.

56645474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318324.

The product of its digits is 403200, while the sum is 41.

The square root of 56645474 is about 7526.3187548761. The cubic root of 56645474 is about 384.0505620993.

The spelling of 56645474 in words is "fifty-six million, six hundred forty-five thousand, four hundred seventy-four".