5501645428 has 6 divisors (see below), whose sum is σ = 9627879506. Its totient is φ = 2750822712.

The previous prime is 5501645381. The next prime is 5501645447. The reversal of 5501645428 is 8245461055.

It can be written as a sum of positive squares in only one way, i.e., 3839289444 + 1662355984 = 61962^2 + 40772^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687705675 + ... + 687705682.

Almost surely, 2^5501645428 is an apocalyptic number.

It is an amenable number.

5501645428 is a deficient number, since it is larger than the sum of its proper divisors (4126234078).

5501645428 is a wasteful number, since it uses less digits than its factorization.

5501645428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375411361 (or 1375411359 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 40.

The square root of 5501645428 is about 74173.0775146886. The cubic root of 5501645428 is about 1765.3501784149.

The spelling of 5501645428 in words is "five billion, five hundred one million, six hundred forty-five thousand, four hundred twenty-eight".