5571021 has 8 divisors (see below), whose sum is σ = 7439200. Its totient is φ = 3708432.

The previous prime is 5570993. The next prime is 5571023. The reversal of 5571021 is 1201755.

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

It is not a de Polignac number, because 5571021 - 2¹⁰ = 5569997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5571023) 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, 2430 + ... + 4128.

It is an arithmetic number, because the mean of its divisors is an integer number (929900).

Almost surely, 2^5571021 is an apocalyptic number.

It is an amenable number.

5571021 is a deficient number, since it is larger than the sum of its proper divisors (1868179).

5571021 is a wasteful number, since it uses less digits than its factorization.

5571021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2795.

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 5571021 is about 2360.3010401218. The cubic root of 5571021 is about 177.2739541365.

Adding to 5571021 its reverse (1201755), we get a palindrome (6772776).

The spelling of 5571021 in words is "five million, five hundred seventy-one thousand, twenty-one".