5521451428 has 6 divisors (see below), whose sum is σ = 9662540006. Its totient is φ = 2760725712.

The previous prime is 5521451387. The next prime is 5521451459. The reversal of 5521451428 is 8241541255.

It can be written as a sum of positive squares in only one way, i.e., 3754257984 + 1767193444 = 61272^2 + 42038^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690181425 + ... + 690181432.

Almost surely, 2^5521451428 is an apocalyptic number.

It is an amenable number.

5521451428 is a deficient number, since it is larger than the sum of its proper divisors (4141088578).

5521451428 is a wasteful number, since it uses less digits than its factorization.

5521451428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380362861 (or 1380362859 counting only the distinct ones).

The product of its digits is 64000, while the sum is 37.

The square root of 5521451428 is about 74306.4696241182. The cubic root of 5521451428 is about 1767.4660697553.

The spelling of 5521451428 in words is "five billion, five hundred twenty-one million, four hundred fifty-one thousand, four hundred twenty-eight".