625744117 has 2 divisors, whose sum is σ = 625744118. Its totient is φ = 625744116.

The previous prime is 625744099. The next prime is 625744193. The reversal of 625744117 is 711447526.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 391011076 + 234733041 = 19774^2 + 15321^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-625744117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (625747117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312872058 + 312872059.

It is an arithmetic number, because the mean of its divisors is an integer number (312872059).

Almost surely, 2^625744117 is an apocalyptic number.

It is an amenable number.

625744117 is a deficient number, since it is larger than the sum of its proper divisors (1).

625744117 is an equidigital number, since it uses as much as digits as its factorization.

625744117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47040, while the sum is 37.

The square root of 625744117 is about 25014.8779129541. The cubic root of 625744117 is about 855.3271513460.

The spelling of 625744117 in words is "six hundred twenty-five million, seven hundred forty-four thousand, one hundred seventeen".