5647557 has 4 divisors (see below), whose sum is σ = 7530080. Its totient is φ = 3765036.

The previous prime is 5647517. The next prime is 5647559. The reversal of 5647557 is 7557465.

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 not a de Polignac number, because 5647557 - 2⁶ = 5647493 is a prime.

It is a D-number.

It is a Duffinian number.

5647557 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5647559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 941257 + ... + 941262.

It is an arithmetic number, because the mean of its divisors is an integer number (1882520).

Almost surely, 2^5647557 is an apocalyptic number.

It is an amenable number.

5647557 is a deficient number, since it is larger than the sum of its proper divisors (1882523).

5647557 is a wasteful number, since it uses less digits than its factorization.

5647557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1882522.

The product of its digits is 147000, while the sum is 39.

The square root of 5647557 is about 2376.4589203266. The cubic root of 5647557 is about 178.0820750984.

The spelling of 5647557 in words is "five million, six hundred forty-seven thousand, five hundred fifty-seven".