5005551566 has 4 divisors (see below), whose sum is σ = 7508327352. Its totient is φ = 2502775782.

The previous prime is 5005551541. The next prime is 5005551589. The reversal of 5005551566 is 6651555005.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6651555005 = 5 ⋅1330311001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1251387890 + ... + 1251387893.

It is an arithmetic number, because the mean of its divisors is an integer number (1877081838).

Almost surely, 2^5005551566 is an apocalyptic number.

5005551566 is a deficient number, since it is larger than the sum of its proper divisors (2502775786).

5005551566 is a wasteful number, since it uses less digits than its factorization.

5005551566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2502775785.

The product of its (nonzero) digits is 112500, while the sum is 38.

The square root of 5005551566 is about 70749.9227278730. The cubic root of 5005551566 is about 1710.6085822150.

The spelling of 5005551566 in words is "five billion, five million, five hundred fifty-one thousand, five hundred sixty-six".