626223953 has 2 divisors, whose sum is σ = 626223954. Its totient is φ = 626223952.

The previous prime is 626223943. The next prime is 626223959. The reversal of 626223953 is 359322626.

It is a happy number.

626223953 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 559180609 + 67043344 = 23647^2 + 8188^2 .

It is a cyclic number.

It is not a de Polignac number, because 626223953 - 2⁶ = 626223889 is a prime.

It is not a weakly prime, because it can be changed into another prime (626223959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313111976 + 313111977.

It is an arithmetic number, because the mean of its divisors is an integer number (313111977).

Almost surely, 2^626223953 is an apocalyptic number.

It is an amenable number.

626223953 is a deficient number, since it is larger than the sum of its proper divisors (1).

626223953 is an equidigital number, since it uses as much as digits as its factorization.

626223953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 38.

The square root of 626223953 is about 25024.4670872328. The cubic root of 626223953 is about 855.5457241282.

The spelling of 626223953 in words is "six hundred twenty-six million, two hundred twenty-three thousand, nine hundred fifty-three".