620885353225 has 12 divisors (see below), whose sum is σ = 769936958604. Its totient is φ = 496683043520.

The previous prime is 620885353199. The next prime is 620885353247. The reversal of 620885353225 is 522353588026.

It can be written as a sum of positive squares in 6 ways, for example, as 108259424784 + 512625928441 = 329028^2 + 715979^2 .

It is not a de Polignac number, because 620885353225 - 2⁷ = 620885353097 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121054 + ... + 1120903.

It is an arithmetic number, because the mean of its divisors is an integer number (64161413217).

Almost surely, 2^620885353225 is an apocalyptic number.

It is an amenable number.

620885353225 is a deficient number, since it is larger than the sum of its proper divisors (149051605379).

620885353225 is a wasteful number, since it uses less digits than its factorization.

620885353225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261964 (or 1261959 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 49.

The spelling of 620885353225 in words is "six hundred twenty billion, eight hundred eighty-five million, three hundred fifty-three thousand, two hundred twenty-five".