830525257 has 2 divisors, whose sum is σ = 830525258. Its totient is φ = 830525256.

The previous prime is 830525251. The next prime is 830525281. The reversal of 830525257 is 752525038.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 503060041 + 327465216 = 22429^2 + 18096^2 .

It is a cyclic number.

It is not a de Polignac number, because 830525257 - 2³ = 830525249 is a prime.

It is not a weakly prime, because it can be changed into another prime (830525251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415262628 + 415262629.

It is an arithmetic number, because the mean of its divisors is an integer number (415262629).

Almost surely, 2^830525257 is an apocalyptic number.

It is an amenable number.

830525257 is a deficient number, since it is larger than the sum of its proper divisors (1).

830525257 is an equidigital number, since it uses as much as digits as its factorization.

830525257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84000, while the sum is 37.

The square root of 830525257 is about 28818.8351083107. The cubic root of 830525257 is about 939.9778389977.

The spelling of 830525257 in words is "eight hundred thirty million, five hundred twenty-five thousand, two hundred fifty-seven".