5011105005551 has 4 divisors (see below), whose sum is σ = 5019226732272. Its totient is φ = 5002983278832.

The previous prime is 5011105005521. The next prime is 5011105005593. The reversal of 5011105005551 is 1555005011105.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5011105005551 is a prime.

It is a super-2 number, since 2×5011105005551² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5011105005521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4060862435 + ... + 4060863668.

It is an arithmetic number, because the mean of its divisors is an integer number (1254806683068).

Almost surely, 2^{5011105005551} is an apocalyptic number.

5011105005551 is a deficient number, since it is larger than the sum of its proper divisors (8121726721).

5011105005551 is an equidigital number, since it uses as much as digits as its factorization.

5011105005551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8121726720.

The product of its (nonzero) digits is 3125, while the sum is 29.

The spelling of 5011105005551 in words is "five trillion, eleven billion, one hundred five million, five thousand, five hundred fifty-one".