626464335025 has 27 divisors (see below), whose sum is σ = 780855698593. Its totient is φ = 498578530400.

The previous prime is 626464334959. The next prime is 626464335041. The reversal of 626464335025 is 520533464626.

The square root of 626464335025 is 791495.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 23890957489 + 602573377536 = 154567^2 + 776256^2 .

It is not a de Polignac number, because 626464335025 - 2⁹ = 626464334513 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 (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1230774471 + ... + 1230774979.

Almost surely, 2^626464335025 is an apocalyptic number.

626464335025 is the 791495-th square number.

626464335025 is the 395748-th centered octagonal number.

It is an amenable number.

626464335025 is a deficient number, since it is larger than the sum of its proper divisors (154391363568).

626464335025 is an frugal number, since it uses more digits than its factorization.

626464335025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1650 (or 825 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 46.

The spelling of 626464335025 in words is "six hundred twenty-six billion, four hundred sixty-four million, three hundred thirty-five thousand, twenty-five".