50556645 has 24 divisors (see below), whose sum is σ = 91443456. Its totient is φ = 25790688.

The previous prime is 50556643. The next prime is 50556679. The reversal of 50556645 is 54665505.

It is a happy number.

50556645 is a `hidden beast` number, since 5 + 0 + 5 + 5 + 6 + 645 = 666.

It is not a de Polignac number, because 50556645 - 2¹ = 50556643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50556641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23389 + ... + 25458.

It is an arithmetic number, because the mean of its divisors is an integer number (3810144).

Almost surely, 2^50556645 is an apocalyptic number.

It is an amenable number.

50556645 is a deficient number, since it is larger than the sum of its proper divisors (40886811).

50556645 is a wasteful number, since it uses less digits than its factorization.

50556645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48881 (or 48878 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The square root of 50556645 is about 7110.3196130694. The cubic root of 50556645 is about 369.7652394401.

The spelling of 50556645 in words is "fifty million, five hundred fifty-six thousand, six hundred forty-five".