755653993 has 2 divisors, whose sum is σ = 755653994. Its totient is φ = 755653992.

The previous prime is 755653991. The next prime is 755653999. The reversal of 755653993 is 399356557.

755653993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 629608464 + 126045529 = 25092^2 + 11227^2 .

It is a cyclic number.

It is not a de Polignac number, because 755653993 - 2¹ = 755653991 is a prime.

Together with 755653991, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 755653993.

It is not a weakly prime, because it can be changed into another prime (755653991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 377826996 + 377826997.

It is an arithmetic number, because the mean of its divisors is an integer number (377826997).

Almost surely, 2^755653993 is an apocalyptic number.

It is an amenable number.

755653993 is a deficient number, since it is larger than the sum of its proper divisors (1).

755653993 is an equidigital number, since it uses as much as digits as its factorization.

755653993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3827250, while the sum is 52.

The square root of 755653993 is about 27489.1613731667. The cubic root of 755653993 is about 910.8376913810.

The spelling of 755653993 in words is "seven hundred fifty-five million, six hundred fifty-three thousand, nine hundred ninety-three".