755653949 has 2 divisors, whose sum is σ = 755653950. Its totient is φ = 755653948.

The previous prime is 755653897. The next prime is 755653991. The reversal of 755653949 is 949356557.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 644245924 + 111408025 = 25382^2 + 10555^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-755653949 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 755653949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (755653999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 377826974 + 377826975.

It is an arithmetic number, because the mean of its divisors is an integer number (377826975).

Almost surely, 2^755653949 is an apocalyptic number.

It is an amenable number.

755653949 is a deficient number, since it is larger than the sum of its proper divisors (1).

755653949 is an equidigital number, since it uses as much as digits as its factorization.

755653949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5103000, while the sum is 53.

The square root of 755653949 is about 27489.1605728513. The cubic root of 755653949 is about 910.8376737024.

The spelling of 755653949 in words is "seven hundred fifty-five million, six hundred fifty-three thousand, nine hundred forty-nine".