5615649 has 20 divisors (see below), whose sum is σ = 9035796. Its totient is φ = 3455136.

The previous prime is 5615641. The next prime is 5615651. The reversal of 5615649 is 9465165.

5615649 is a `hidden beast` number, since 5 + 6 + 1 + 5 + 649 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3744225 + 1871424 = 1935^2 + 1368^2 .

It is not a de Polignac number, because 5615649 - 2³ = 5615641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5615641) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1614 + ... + 3719.

Almost surely, 2^5615649 is an apocalyptic number.

It is an amenable number.

5615649 is a deficient number, since it is larger than the sum of its proper divisors (3420147).

5615649 is a wasteful number, since it uses less digits than its factorization.

5615649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5358 (or 5349 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 5615649 is about 2369.7360612524. The cubic root of 5615649 is about 177.7460609072.

The spelling of 5615649 in words is "five million, six hundred fifteen thousand, six hundred forty-nine".