5621002 has 4 divisors (see below), whose sum is σ = 8431506. Its totient is φ = 2810500.

The previous prime is 5620997. The next prime is 5621023. The reversal of 5621002 is 2001265.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4879681 + 741321 = 2209^2 + 861^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1405249 + ... + 1405252.

Almost surely, 2^5621002 is an apocalyptic number.

5621002 is a deficient number, since it is larger than the sum of its proper divisors (2810504).

5621002 is a wasteful number, since it uses less digits than its factorization.

5621002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2810503.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 5621002 is about 2370.8652429018. The cubic root of 5621002 is about 177.8025205435.

Adding to 5621002 its reverse (2001265), we get a palindrome (7622267).

The spelling of 5621002 in words is "five million, six hundred twenty-one thousand, two".