5651857 has 4 divisors (see below), whose sum is σ = 5656756. Its totient is φ = 5646960.

The previous prime is 5651851. The next prime is 5651869. The reversal of 5651857 is 7581565.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1806336 + 3845521 = 1344^2 + 1961^2 .

It is a cyclic number.

It is not a de Polignac number, because 5651857 - 2⁷ = 5651729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5651851) 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, 343 + ... + 3379.

It is an arithmetic number, because the mean of its divisors is an integer number (1414189).

Almost surely, 2^5651857 is an apocalyptic number.

It is an amenable number.

5651857 is a deficient number, since it is larger than the sum of its proper divisors (4899).

5651857 is a wasteful number, since it uses less digits than its factorization.

5651857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4898.

The product of its digits is 42000, while the sum is 37.

The square root of 5651857 is about 2377.3634555953. The cubic root of 5651857 is about 178.1272603386.

The spelling of 5651857 in words is "five million, six hundred fifty-one thousand, eight hundred fifty-seven".