1625625484 has 24 divisors (see below), whose sum is σ = 3422370560. Its totient is φ = 660028176.

The previous prime is 1625625481. The next prime is 1625625497. The reversal of 1625625484 is 4845265261.

It is a self number, because there is not a number n which added to its sum of digits gives 1625625484.

It is not an unprimeable number, because it can be changed into a prime (1625625481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1527312 + ... + 1528375.

Almost surely, 2^1625625484 is an apocalyptic number.

1625625484 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1625625484 is an abundant number, since it is smaller than the sum of its proper divisors (1796745076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1625625484 is a wasteful number, since it uses less digits than its factorization.

1625625484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3055717 (or 3055715 counting only the distinct ones).

The product of its digits is 460800, while the sum is 43.

The square root of 1625625484 is about 40319.0461692734. The cubic root of 1625625484 is about 1175.8181678159.

It can be divided in two parts, 1625625 and 484, that multiplied together give a square (786802500 = 28050²).

The spelling of 1625625484 in words is "one billion, six hundred twenty-five million, six hundred twenty-five thousand, four hundred eighty-four".