6511750245 has 128 divisors (see below), whose sum is σ = 15543521280. Its totient is φ = 2497962240.

The previous prime is 6511750241. The next prime is 6511750337. The reversal of 6511750245 is 5420571156.

It is not a de Polignac number, because 6511750245 - 2² = 6511750241 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6511750241) 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 127 ways as a sum of consecutive naturals, for example, 111042 + ... + 159228.

It is an arithmetic number, because the mean of its divisors is an integer number (121433760).

Almost surely, 2^6511750245 is an apocalyptic number.

6511750245 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6511750245 is an abundant number, since it is smaller than the sum of its proper divisors (9031771035).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6511750245 is a wasteful number, since it uses less digits than its factorization.

6511750245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48232 (or 48226 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The square root of 6511750245 is about 80695.4165055240. The cubic root of 6511750245 is about 1867.3794635191.

Subtracting from 6511750245 its reverse (5420571156), we obtain a square (1091179089 = 33033²).

The spelling of 6511750245 in words is "six billion, five hundred eleven million, seven hundred fifty thousand, two hundred forty-five".