5250277780549 has 4 divisors (see below), whose sum is σ = 5251139759680. Its totient is φ = 5249415801420.

The previous prime is 5250277780537. The next prime is 5250277780661. The reversal of 5250277780549 is 9450877720525.

It is a happy number.

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 5250277780549 - 2¹⁹ = 5250277256261 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 (5250277780949) 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, 430980429 + ... + 430992610.

It is an arithmetic number, because the mean of its divisors is an integer number (1312784939920).

Almost surely, 2^{5250277780549} is an apocalyptic number.

It is an amenable number.

5250277780549 is a deficient number, since it is larger than the sum of its proper divisors (861979131).

5250277780549 is an equidigital number, since it uses as much as digits as its factorization.

5250277780549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861979130.

The product of its (nonzero) digits is 49392000, while the sum is 61.

The spelling of 5250277780549 in words is "five trillion, two hundred fifty billion, two hundred seventy-seven million, seven hundred eighty thousand, five hundred forty-nine".