625248017 has 2 divisors, whose sum is σ = 625248018. Its totient is φ = 625248016.

The previous prime is 625247999. The next prime is 625248037. The reversal of 625248017 is 710842526.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 472453696 + 152794321 = 21736^2 + 12361^2 .

It is a cyclic number.

It is not a de Polignac number, because 625248017 - 2¹² = 625243921 is a prime.

It is not a weakly prime, because it can be changed into another prime (625248037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312624008 + 312624009.

It is an arithmetic number, because the mean of its divisors is an integer number (312624009).

Almost surely, 2^625248017 is an apocalyptic number.

It is an amenable number.

625248017 is a deficient number, since it is larger than the sum of its proper divisors (1).

625248017 is an equidigital number, since it uses as much as digits as its factorization.

625248017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 625248017 is about 25004.9598479982. The cubic root of 625248017 is about 855.1010525432.

The spelling of 625248017 in words is "six hundred twenty-five million, two hundred forty-eight thousand, seventeen".