5005657 has 4 divisors (see below), whose sum is σ = 5013220. Its totient is φ = 4998096.

The previous prime is 5005643. The next prime is 5005669. The reversal of 5005657 is 7565005.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4076361 + 929296 = 2019^2 + 964^2 .

It is a cyclic number.

It is not a de Polignac number, because 5005657 - 2¹⁹ = 4481369 is a prime.

It is a Duffinian number.

5005657 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5005687) 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, 2682 + ... + 4147.

It is an arithmetic number, because the mean of its divisors is an integer number (1253305).

Almost surely, 2^5005657 is an apocalyptic number.

It is an amenable number.

5005657 is a deficient number, since it is larger than the sum of its proper divisors (7563).

5005657 is an equidigital number, since it uses as much as digits as its factorization.

5005657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7562.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 5005657 is about 2237.3325635676. The cubic root of 5005657 is about 171.0620592549.

The spelling of 5005657 in words is "five million, five thousand, six hundred fifty-seven".