5551501255538 has 32 divisors (see below), whose sum is σ = 10199031369984. Its totient is φ = 2214263380032.

The previous prime is 5551501255519. The next prime is 5551501255567. The reversal of 5551501255538 is 8355521051555.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232970345 + ... + 232994172.

It is an arithmetic number, because the mean of its divisors is an integer number (318719730312).

Almost surely, 2^{5551501255538} is an apocalyptic number.

5551501255538 is a deficient number, since it is larger than the sum of its proper divisors (4647530114446).

5551501255538 is a wasteful number, since it uses less digits than its factorization.

5551501255538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465964586.

The product of its (nonzero) digits is 3750000, while the sum is 50.

The spelling of 5551501255538 in words is "five trillion, five hundred fifty-one billion, five hundred one million, two hundred fifty-five thousand, five hundred thirty-eight".