757225813 has 2 divisors, whose sum is σ = 757225814. Its totient is φ = 757225812.

The previous prime is 757225801. The next prime is 757225817. The reversal of 757225813 is 318522757.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 612216049 + 145009764 = 24743^2 + 12042^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-757225813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (757225817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 378612906 + 378612907.

It is an arithmetic number, because the mean of its divisors is an integer number (378612907).

Almost surely, 2^757225813 is an apocalyptic number.

It is an amenable number.

757225813 is a deficient number, since it is larger than the sum of its proper divisors (1).

757225813 is an equidigital number, since it uses as much as digits as its factorization.

757225813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 117600, while the sum is 40.

The square root of 757225813 is about 27517.7363349531. The cubic root of 757225813 is about 911.4687921205.

The spelling of 757225813 in words is "seven hundred fifty-seven million, two hundred twenty-five thousand, eight hundred thirteen".