5100500561 has 4 divisors (see below), whose sum is σ = 5492846772. Its totient is φ = 4708154352.

The previous prime is 5100500533. The next prime is 5100500563. The reversal of 5100500561 is 1650050015.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1514766400 + 3585734161 = 38920^2 + 59881^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5100500561 is a prime.

It is a super-2 number, since 2×5100500561² = 52030211945522629442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5100500563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196173086 + ... + 196173111.

It is an arithmetic number, because the mean of its divisors is an integer number (1373211693).

Almost surely, 2^5100500561 is an apocalyptic number.

It is an amenable number.

5100500561 is a deficient number, since it is larger than the sum of its proper divisors (392346211).

5100500561 is a wasteful number, since it uses less digits than its factorization.

5100500561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392346210.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 5100500561 is about 71417.7888274343. The cubic root of 5100500561 is about 1721.3569336526.

Adding to 5100500561 its reverse (1650050015), we get a palindrome (6750550576).

The spelling of 5100500561 in words is "five billion, one hundred million, five hundred thousand, five hundred sixty-one".