56546649 has 6 divisors (see below), whose sum is σ = 81678506. Its totient is φ = 37697760.

The previous prime is 56546647. The next prime is 56546657. The reversal of 56546649 is 94664565.

56546649 is a `hidden beast` number, since 565 + 46 + 6 + 49 = 666.

It can be written as a sum of positive squares in only one way, i.e., 54464400 + 2082249 = 7380^2 + 1443^2 .

It is not a de Polignac number, because 56546649 - 2¹ = 56546647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56546647) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3141472 + ... + 3141489.

Almost surely, 2^56546649 is an apocalyptic number.

It is an amenable number.

56546649 is a deficient number, since it is larger than the sum of its proper divisors (25131857).

56546649 is a wasteful number, since it uses less digits than its factorization.

56546649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6282967 (or 6282964 counting only the distinct ones).

The product of its digits is 777600, while the sum is 45.

The square root of 56546649 is about 7519.7505942684. The cubic root of 56546649 is about 383.8270909360.

The spelling of 56546649 in words is "fifty-six million, five hundred forty-six thousand, six hundred forty-nine".