5506021428 has 24 divisors (see below), whose sum is σ = 13405965888. Its totient is φ = 1755542976.

The previous prime is 5506021399. The next prime is 5506021429. The reversal of 5506021428 is 8241206055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5506021429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9974401 + ... + 9974952.

It is an arithmetic number, because the mean of its divisors is an integer number (558581912).

Almost surely, 2^5506021428 is an apocalyptic number.

It is an amenable number.

5506021428 is an abundant number, since it is smaller than the sum of its proper divisors (7899944460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5506021428 is a wasteful number, since it uses less digits than its factorization.

5506021428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19949383 (or 19949381 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 5506021428 is about 74202.5702250266. The cubic root of 5506021428 is about 1765.8181066127.

The spelling of 5506021428 in words is "five billion, five hundred six million, twenty-one thousand, four hundred twenty-eight".