4997521993555 has 32 divisors (see below), whose sum is σ = 7769426918400. Its totient is φ = 2996778943872.

The previous prime is 4997521993547. The next prime is 4997521993591. The reversal of 4997521993555 is 5553991257994.

It is not a de Polignac number, because 4997521993555 - 2³ = 4997521993547 is a prime.

It is a Smith number, since the sum of its digits (73) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 31 ways as a sum of consecutive naturals, for example, 289032535 + ... + 289049824.

It is an arithmetic number, because the mean of its divisors is an integer number (242794591200).

Almost surely, 2^{4997521993555} is an apocalyptic number.

4997521993555 is a deficient number, since it is larger than the sum of its proper divisors (2771904924845).

4997521993555 is a wasteful number, since it uses less digits than its factorization.

4997521993555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578082403.

The product of its digits is 688905000, while the sum is 73.

The spelling of 4997521993555 in words is "four trillion, nine hundred ninety-seven billion, five hundred twenty-one million, nine hundred ninety-three thousand, five hundred fifty-five".