5001566551 has 4 divisors (see below), whose sum is σ = 5064877600. Its totient is φ = 4938255504.

The previous prime is 5001566533. The next prime is 5001566587. The reversal of 5001566551 is 1556651005.

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 5001566551 - 2²¹ = 4999469399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5001366551) 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, 31655406 + ... + 31655563.

It is an arithmetic number, because the mean of its divisors is an integer number (1266219400).

Almost surely, 2^5001566551 is an apocalyptic number.

5001566551 is a deficient number, since it is larger than the sum of its proper divisors (63311049).

5001566551 is an equidigital number, since it uses as much as digits as its factorization.

5001566551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63311048.

The product of its (nonzero) digits is 22500, while the sum is 34.

The square root of 5001566551 is about 70721.7544394934. The cubic root of 5001566551 is about 1710.1545123311.

The spelling of 5001566551 in words is "five billion, one million, five hundred sixty-six thousand, five hundred fifty-one".