5519621428 has 12 divisors (see below), whose sum is σ = 9659988772. Its totient is φ = 2759624640.

The previous prime is 5519621407. The next prime is 5519621431. The reversal of 5519621428 is 8241269155.

It can be written as a sum of positive squares in 2 ways, for example, as 2658227364 + 2861394064 = 51558^2 + 53492^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 36808 + ... + 111328.

Almost surely, 2^5519621428 is an apocalyptic number.

It is an amenable number.

5519621428 is a deficient number, since it is larger than the sum of its proper divisors (4140367344).

5519621428 is a wasteful number, since it uses less digits than its factorization.

5519621428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93042 (or 93040 counting only the distinct ones).

The product of its digits is 172800, while the sum is 43.

The square root of 5519621428 is about 74294.1547364259. The cubic root of 5519621428 is about 1767.2707817135.

The spelling of 5519621428 in words is "five billion, five hundred nineteen million, six hundred twenty-one thousand, four hundred twenty-eight".