5551561450 has 24 divisors (see below), whose sum is σ = 10350587520. Its totient is φ = 2215316400.

The previous prime is 5551561441. The next prime is 5551561469. The reversal of 5551561450 is 541651555.

It is a super-2 number, since 2×5551561450² = 61639669066252205000, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111546 + ... + 153445.

It is an arithmetic number, because the mean of its divisors is an integer number (431274480).

Almost surely, 2^5551561450 is an apocalyptic number.

5551561450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5551561450 is a deficient number, since it is larger than the sum of its proper divisors (4799026070).

5551561450 is a wasteful number, since it uses less digits than its factorization.

5551561450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265422 (or 265417 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 37.

The square root of 5551561450 is about 74508.8011579840. The cubic root of 5551561450 is about 1770.6730764994.

The spelling of 5551561450 in words is "five billion, five hundred fifty-one million, five hundred sixty-one thousand, four hundred fifty".