1625364256 has 24 divisors (see below), whose sum is σ = 3247700400. Its totient is φ = 800551488.

The previous prime is 1625364229. The next prime is 1625364259. The reversal of 1625364256 is 6524635261.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1625364259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376906 + ... + 381193.

It is an arithmetic number, because the mean of its divisors is an integer number (135320850).

Almost surely, 2^1625364256 is an apocalyptic number.

1625364256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1625364256 is a deficient number, since it is larger than the sum of its proper divisors (1622336144).

1625364256 is an equidigital number, since it uses as much as digits as its factorization.

1625364256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758176 (or 758168 counting only the distinct ones).

The product of its digits is 259200, while the sum is 40.

The square root of 1625364256 is about 40315.8065279612. The cubic root of 1625364256 is about 1175.7551821968.

The spelling of 1625364256 in words is "one billion, six hundred twenty-five million, three hundred sixty-four thousand, two hundred fifty-six".