5051869561 has 4 divisors (see below), whose sum is σ = 5060304000. Its totient is φ = 5043435124.

The previous prime is 5051869547. The next prime is 5051869597. The reversal of 5051869561 is 1659681505.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5051869561 - 2¹³ = 5051861369 is a prime.

It is a super-2 number, since 2×5051869561² = 51042772122716665442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5051819561) 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, 4216321 + ... + 4217518.

It is an arithmetic number, because the mean of its divisors is an integer number (1265076000).

Almost surely, 2^5051869561 is an apocalyptic number.

It is an amenable number.

5051869561 is a deficient number, since it is larger than the sum of its proper divisors (8434439).

5051869561 is an equidigital number, since it uses as much as digits as its factorization.

5051869561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8434438.

The product of its (nonzero) digits is 324000, while the sum is 46.

The square root of 5051869561 is about 71076.5049858250. The cubic root of 5051869561 is about 1715.8686633462.

The spelling of 5051869561 in words is "five billion, fifty-one million, eight hundred sixty-nine thousand, five hundred sixty-one".