5642001 has 8 divisors (see below), whose sum is σ = 8358560. Its totient is φ = 3761316.

The previous prime is 5641997. The next prime is 5642017. The reversal of 5642001 is 1002465.

It is a happy number.

It is not a de Polignac number, because 5642001 - 2² = 5641997 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 (5642041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104455 + ... + 104508.

It is an arithmetic number, because the mean of its divisors is an integer number (1044820).

Almost surely, 2^5642001 is an apocalyptic number.

It is an amenable number.

5642001 is a deficient number, since it is larger than the sum of its proper divisors (2716559).

5642001 is a wasteful number, since it uses less digits than its factorization.

5642001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208972 (or 208966 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 5642001 is about 2375.2896665460. The cubic root of 5642001 is about 178.0236575887.

Adding to 5642001 its reverse (1002465), we get a palindrome (6644466).

The spelling of 5642001 in words is "five million, six hundred forty-two thousand, one".