5621290 has 8 divisors (see below), whose sum is σ = 10118340. Its totient is φ = 2248512.

The previous prime is 5621281. The next prime is 5621303. The reversal of 5621290 is 921265.

It can be written as a sum of positive squares in 2 ways, for example, as 5536609 + 84681 = 2353^2 + 291^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281055 + ... + 281074.

Almost surely, 2^5621290 is an apocalyptic number.

5621290 is a deficient number, since it is larger than the sum of its proper divisors (4497050).

5621290 is a wasteful number, since it uses less digits than its factorization.

5621290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562136.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 5621290 is about 2370.9259794435. The cubic root of 5621290 is about 177.8055571463.

Subtracting from 5621290 its sum of digits (25), we obtain a palindrome (5621265).

The spelling of 5621290 in words is "five million, six hundred twenty-one thousand, two hundred ninety".