625782449 has 2 divisors, whose sum is σ = 625782450. Its totient is φ = 625782448.

The previous prime is 625782433. The next prime is 625782481. The reversal of 625782449 is 944287526.

625782449 is digitally balanced in base 2, 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., 460402849 + 165379600 = 21457^2 + 12860^2 .

It is a cyclic number.

It is not a de Polignac number, because 625782449 - 2⁴ = 625782433 is a prime.

It is not a weakly prime, because it can be changed into another prime (625782149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312891224 + 312891225.

It is an arithmetic number, because the mean of its divisors is an integer number (312891225).

Almost surely, 2^625782449 is an apocalyptic number.

It is an amenable number.

625782449 is a deficient number, since it is larger than the sum of its proper divisors (1).

625782449 is an equidigital number, since it uses as much as digits as its factorization.

625782449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 967680, while the sum is 47.

The square root of 625782449 is about 25015.6440852519. The cubic root of 625782449 is about 855.3446162756.

The spelling of 625782449 in words is "six hundred twenty-five million, seven hundred eighty-two thousand, four hundred forty-nine".