5255307749 has 4 divisors (see below), whose sum is σ = 5329326240. Its totient is φ = 5181289260.

The previous prime is 5255307709. The next prime is 5255307779. The reversal of 5255307749 is 9477035525.

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 5255307749 - 2⁸ = 5255307493 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 (5255307709) 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, 37009139 + ... + 37009280.

It is an arithmetic number, because the mean of its divisors is an integer number (1332331560).

Almost surely, 2^5255307749 is an apocalyptic number.

It is an amenable number.

5255307749 is a deficient number, since it is larger than the sum of its proper divisors (74018491).

5255307749 is an equidigital number, since it uses as much as digits as its factorization.

5255307749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74018490.

The product of its (nonzero) digits is 1323000, while the sum is 47.

The square root of 5255307749 is about 72493.5014259899. The cubic root of 5255307749 is about 1738.5988355490.

The spelling of 5255307749 in words is "five billion, two hundred fifty-five million, three hundred seven thousand, seven hundred forty-nine".