5621001 has 8 divisors (see below), whose sum is σ = 7533504. Its totient is φ = 3727920.

The previous prime is 5620997. The next prime is 5621023. The reversal of 5621001 is 1001265.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5621001 - 2² = 5620997 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5621051) 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, 4165 + ... + 5346.

It is an arithmetic number, because the mean of its divisors is an integer number (941688).

Almost surely, 2^5621001 is an apocalyptic number.

It is an amenable number.

5621001 is a deficient number, since it is larger than the sum of its proper divisors (1912503).

5621001 is a wasteful number, since it uses less digits than its factorization.

5621001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9711.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 5621001 is about 2370.8650320084. The cubic root of 5621001 is about 177.8025099995.

Adding to 5621001 its reverse (1001265), we get a palindrome (6622266).

The spelling of 5621001 in words is "five million, six hundred twenty-one thousand, one".