755280805 has 8 divisors (see below), whose sum is σ = 911576952. Its totient is φ = 600731328.

The previous prime is 755280787. The next prime is 755280817. The reversal of 755280805 is 508082557.

It can be written as a sum of positive squares in 4 ways, for example, as 219543489 + 535737316 = 14817^2 + 23146^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 755280805 - 2⁷ = 755280677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 435714 + ... + 437443.

It is an arithmetic number, because the mean of its divisors is an integer number (113947119).

Almost surely, 2^755280805 is an apocalyptic number.

It is an amenable number.

755280805 is a deficient number, since it is larger than the sum of its proper divisors (156296147).

755280805 is a wasteful number, since it uses less digits than its factorization.

755280805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873335.

The product of its (nonzero) digits is 112000, while the sum is 40.

The square root of 755280805 is about 27482.3726231925. The cubic root of 755280805 is about 910.6877243010.

The spelling of 755280805 in words is "seven hundred fifty-five million, two hundred eighty thousand, eight hundred five".