5221906 has 4 divisors (see below), whose sum is σ = 7832862. Its totient is φ = 2610952.

The previous prime is 5221891. The next prime is 5221927. The reversal of 5221906 is 6091225.

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 + 342225 = 2209^2 + 585^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1305475 + ... + 1305478.

Almost surely, 2^5221906 is an apocalyptic number.

5221906 is a deficient number, since it is larger than the sum of its proper divisors (2610956).

5221906 is a wasteful number, since it uses less digits than its factorization.

5221906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2610955.

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

The square root of 5221906 is about 2285.1490104586. The cubic root of 5221906 is about 173.4907601654.

The spelling of 5221906 in words is "five million, two hundred twenty-one thousand, nine hundred six".