7825299997 has 2 divisors, whose sum is σ = 7825299998. Its totient is φ = 7825299996.

The previous prime is 7825299983. The next prime is 7825300019. The reversal of 7825299997 is 7999925287.

7825299997 is digitally balanced in base 3, 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., 7453041561 + 372258436 = 86331^2 + 19294^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7825299997 is a prime.

It is a super-2 number, since 2×7825299997² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7825299947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3912649998 + 3912649999.

It is an arithmetic number, because the mean of its divisors is an integer number (3912649999).

Almost surely, 2^7825299997 is an apocalyptic number.

It is an amenable number.

7825299997 is a deficient number, since it is larger than the sum of its proper divisors (1).

7825299997 is an equidigital number, since it uses as much as digits as its factorization.

7825299997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51438240, while the sum is 67.

The square root of 7825299997 is about 88460.7257318184. The cubic root of 7825299997 is about 1985.3343892035.

The spelling of 7825299997 in words is "seven billion, eight hundred twenty-five million, two hundred ninety-nine thousand, nine hundred ninety-seven".