625333422401 has 2 divisors, whose sum is σ = 625333422402. Its totient is φ = 625333422400.

The previous prime is 625333422293. The next prime is 625333422409. The reversal of 625333422401 is 104224333526.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 624177422401 + 1156000000 = 790049^2 + 34000^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-625333422401 is a prime.

It is not a weakly prime, because it can be changed into another prime (625333422409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312666711200 + 312666711201.

It is an arithmetic number, because the mean of its divisors is an integer number (312666711201).

Almost surely, 2^625333422401 is an apocalyptic number.

It is an amenable number.

625333422401 is a deficient number, since it is larger than the sum of its proper divisors (1).

625333422401 is an equidigital number, since it uses as much as digits as its factorization.

625333422401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 35.

Adding to 625333422401 its reverse (104224333526), we get a palindrome (729557755927).

The spelling of 625333422401 in words is "six hundred twenty-five billion, three hundred thirty-three million, four hundred twenty-two thousand, four hundred one".