625341442249 has 2 divisors, whose sum is σ = 625341442250. Its totient is φ = 625341442248.

The previous prime is 625341442213. The next prime is 625341442309. The reversal of 625341442249 is 942244143526.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 532946721024 + 92394721225 = 730032^2 + 303965^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-625341442249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 625341442199 and 625341442208.

It is not a weakly prime, because it can be changed into another prime (625341442949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312670721124 + 312670721125.

It is an arithmetic number, because the mean of its divisors is an integer number (312670721125).

Almost surely, 2^625341442249 is an apocalyptic number.

It is an amenable number.

625341442249 is a deficient number, since it is larger than the sum of its proper divisors (1).

625341442249 is an equidigital number, since it uses as much as digits as its factorization.

625341442249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1658880, while the sum is 46.

The spelling of 625341442249 in words is "six hundred twenty-five billion, three hundred forty-one million, four hundred forty-two thousand, two hundred forty-nine".