5649081 has 4 divisors (see below), whose sum is σ = 7532112. Its totient is φ = 3766052.

The previous prime is 5649079. The next prime is 5649101. The reversal of 5649081 is 1809465.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5649081 - 2¹ = 5649079 is a prime.

It is a super-2 number, since 2×5649081² = 63824232289122, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (5649001) 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, 941511 + ... + 941516.

It is an arithmetic number, because the mean of its divisors is an integer number (1883028).

Almost surely, 2^5649081 is an apocalyptic number.

It is an amenable number.

5649081 is a deficient number, since it is larger than the sum of its proper divisors (1883031).

5649081 is a wasteful number, since it uses less digits than its factorization.

5649081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1883030.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 5649081 is about 2376.7795438366. The cubic root of 5649081 is about 178.0980922113.

The spelling of 5649081 in words is "five million, six hundred forty-nine thousand, eighty-one".