5000555551 has 4 divisors (see below), whose sum is σ = 5050066104. Its totient is φ = 4951045000.

The previous prime is 5000555503. The next prime is 5000555563. The reversal of 5000555551 is 1555550005.

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

It is a cyclic number.

It is not a de Polignac number, because 5000555551 - 2⁹ = 5000555039 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5000555501) 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, 24755125 + ... + 24755326.

It is an arithmetic number, because the mean of its divisors is an integer number (1262516526).

Almost surely, 2^5000555551 is an apocalyptic number.

5000555551 is a deficient number, since it is larger than the sum of its proper divisors (49510553).

5000555551 is a wasteful number, since it uses less digits than its factorization.

5000555551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49510552.

The product of its (nonzero) digits is 15625, while the sum is 31.

The square root of 5000555551 is about 70714.6063483351. The cubic root of 5000555551 is about 1710.0392762544.

The spelling of 5000555551 in words is "five billion, five hundred fifty-five thousand, five hundred fifty-one".