625346643473 has 2 divisors, whose sum is σ = 625346643474. Its totient is φ = 625346643472.

The previous prime is 625346643359. The next prime is 625346643587. The reversal of 625346643473 is 374346643526.

It is a balanced prime because it is at equal distance from previous prime (625346643359) and next prime (625346643587).

It can be written as a sum of positive squares in only one way, i.e., 600364628224 + 24982015249 = 774832^2 + 158057^2 .

It is a cyclic number.

It is not a de Polignac number, because 625346643473 - 2¹⁶ = 625346577937 is a prime.

It is not a weakly prime, because it can be changed into another prime (625346643673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312673321736 + 312673321737.

It is an arithmetic number, because the mean of its divisors is an integer number (312673321737).

Almost surely, 2^625346643473 is an apocalyptic number.

It is an amenable number.

625346643473 is a deficient number, since it is larger than the sum of its proper divisors (1).

625346643473 is an equidigital number, since it uses as much as digits as its factorization.

625346643473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26127360, while the sum is 53.

Adding to 625346643473 its sum of digits (53), we get a palindrome (625346643526).

The spelling of 625346643473 in words is "six hundred twenty-five billion, three hundred forty-six million, six hundred forty-three thousand, four hundred seventy-three".