5221784426 has 4 divisors (see below), whose sum is σ = 7832676642. Its totient is φ = 2610892212.

The previous prime is 5221784419. The next prime is 5221784441. The reversal of 5221784426 is 6244871225.

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., 4432230625 + 789553801 = 66575^2 + 28099^2 .

It is a super-2 number, since 2×5221784426² = 54534065183232298952, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1305446105 + ... + 1305446108.

Almost surely, 2^5221784426 is an apocalyptic number.

5221784426 is a deficient number, since it is larger than the sum of its proper divisors (2610892216).

5221784426 is a wasteful number, since it uses less digits than its factorization.

5221784426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2610892215.

The product of its digits is 215040, while the sum is 41.

The square root of 5221784426 is about 72261.9154603585. The cubic root of 5221784426 is about 1734.8941377770.

The spelling of 5221784426 in words is "five billion, two hundred twenty-one million, seven hundred eighty-four thousand, four hundred twenty-six".