5551221531125 has 16 divisors (see below), whose sum is σ = 7229138582016. Its totient is φ = 4247891256400.

The previous prime is 5551221531049. The next prime is 5551221531133. The reversal of 5551221531125 is 5211351221555.

It is not a de Polignac number, because 5551221531125 - 2¹² = 5551221527029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 965426957 + ... + 965432706.

It is an arithmetic number, because the mean of its divisors is an integer number (451821161376).

Almost surely, 2^{5551221531125} is an apocalyptic number.

It is an amenable number.

5551221531125 is a deficient number, since it is larger than the sum of its proper divisors (1677917050891).

5551221531125 is a wasteful number, since it uses less digits than its factorization.

5551221531125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1930859701 (or 1930859691 counting only the distinct ones).

The product of its digits is 75000, while the sum is 38.

The spelling of 5551221531125 in words is "five trillion, five hundred fifty-one billion, two hundred twenty-one million, five hundred thirty-one thousand, one hundred twenty-five".