5250105261 has 8 divisors (see below), whose sum is σ = 7777933760. Its totient is φ = 3500070156.

The previous prime is 5250105233. The next prime is 5250105313. The reversal of 5250105261 is 1625010525.

5250105261 is a `hidden beast` number, since 52 + 501 + 0 + 52 + 61 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-5250105261 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 194448343 = 5250105261 / (5 + 2 + 5 + 0 + 1 + 0 + 5 + 2 + 6 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5250104261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97224145 + ... + 97224198.

It is an arithmetic number, because the mean of its divisors is an integer number (972241720).

Almost surely, 2^5250105261 is an apocalyptic number.

It is an amenable number.

5250105261 is a deficient number, since it is larger than the sum of its proper divisors (2527828499).

5250105261 is a wasteful number, since it uses less digits than its factorization.

5250105261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194448352 (or 194448346 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 5250105261 is about 72457.6100972148. The cubic root of 5250105261 is about 1738.0249379224.

Adding to 5250105261 its reverse (1625010525), we get a palindrome (6875115786).

The spelling of 5250105261 in words is "five billion, two hundred fifty million, one hundred five thousand, two hundred sixty-one".