755275409 has 8 divisors (see below), whose sum is σ = 864100608. Its totient is φ = 646682400.

The previous prime is 755275399. The next prime is 755275427. The reversal of 755275409 is 904572557.

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

It is a de Polignac number, because none of the positive numbers 2^k-755275409 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 755275409.

It is not an unprimeable number, because it can be changed into a prime (755275489) 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, 51017 + ... + 64134.

It is an arithmetic number, because the mean of its divisors is an integer number (108012576).

Almost surely, 2^755275409 is an apocalyptic number.

It is an amenable number.

755275409 is a deficient number, since it is larger than the sum of its proper divisors (108825199).

755275409 is a wasteful number, since it uses less digits than its factorization.

755275409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116095.

The product of its (nonzero) digits is 441000, while the sum is 44.

The square root of 755275409 is about 27482.2744509984. The cubic root of 755275409 is about 910.6855555347.

The spelling of 755275409 in words is "seven hundred fifty-five million, two hundred seventy-five thousand, four hundred nine".