5651001 has 12 divisors (see below), whose sum is σ = 8210020. Its totient is φ = 3745440.

The previous prime is 5650993. The next prime is 5651011. The reversal of 5651001 is 1001565.

5651001 is a `hidden beast` number, since 565 + 100 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 104976 + 5546025 = 324^2 + 2355^2 .

It is not a de Polignac number, because 5651001 - 2³ = 5650993 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5651011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106 + ... + 3363.

Almost surely, 2^5651001 is an apocalyptic number.

It is an amenable number.

5651001 is a deficient number, since it is larger than the sum of its proper divisors (2559019).

5651001 is a wasteful number, since it uses less digits than its factorization.

5651001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3656 (or 3653 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 5651001 is about 2377.1834174081. The cubic root of 5651001 is about 178.1182671509.

Adding to 5651001 its reverse (1001565), we get a palindrome (6652566).

It can be divided in two parts, 565 and 1001, that multiplied together give a palindrome (565565).

The spelling of 5651001 in words is "five million, six hundred fifty-one thousand, one".